Osmosis, which one do you use?

Lisa

Good day! Could you please tell me which manufacturer of reverse osmosis is suitable for aquariums and personal use? Thank you.

James5032

I'm using this one - it's cheaper (thank you) I couldn't find anything else. I'm satisfied with the osmosis.

Mike

Homemade

Laurie3842

How often do the cartridges and membrane need to be changed in this model?

Dana4701

- polypropylene cartridge (PP) 5 microns - once every 3-4 months. - granular activated carbon (GAC) cartridge - once every 3-4 months. - compressed activated carbon (CTO) cartridge - once every 3-4 months. - reverse osmosis membrane - once every 24-36 months. - post-filter - at least once every 12 months.

Kayla7655

How much water is one set enough for?

Rodney7316

I haven't changed the cartridges yet; the reverse osmosis system has only been in use for 1 month. I think if used wisely (drinking and replacing water in the aquarium, rather than washing dishes with the reverse osmosis water), it should last as I mentioned - once every 3 months. For example, the resource of the GAC-10 carbon filter is 19 cubic meters, meaning that even if you fill the water tank daily (and use, for instance, 100 liters of water for that), the cartridge will last for 190 days or just over 6 months. However, if the filters do get clogged before that time (for example, due to excessive dirt entering the water supply), you will notice it right away.

Jasmine

Who can explain the principle of its operation? Not at the level of filtration, but at the level of connection. That is, where does the wastewater go?

Stefanie9771

After three stages of pre-filtration, the water reaches the membrane, after which the osmosis water goes to the tap, and the wastewater goes to the sewer (that's how I have it, and probably most people do too), but it can be used for watering plants or in the toilet tank or...

Michelle1505

What is the relationship between purified water and wastewater?

Alejandro

For 1 liter of osmosis, 3-5 liters of water go to the sewage.

Mark

It would be great if everyone had it like that! I mentioned in the neighboring thread that I get 333 liters of tap water for every 1 liter of water extracted...

Hannah

Thank you all for participating, but I would still like to hear which brand of osmosis everyone is using???

Kevin3114

Osmosis is osmosis, even in Africa (take any). Even the cheapest one (I'm not complaining, and others aren't either) that I wrote about will produce the same osmosis as a unit costing 1000 yen... it's just that the label will be super-duper-mega osmosis, not just REVERSE OSMOSIS SYSTEM (and of course, the American flag)...

Jason9952

This is not just A LOT, but VERY MUCH. Maybe you don't have a limiter or the faucet is open through the limiter.

Jasmine

Until yesterday, I knew nothing about the restrictor. As a result, since there is no restrictor, one reverse osmosis system has been operating on a single membrane for 5 years!!!! I'm even afraid to talk about it. It works fine, servicing a 400-liter marine aquarium for all its needs + for drinking. The second reverse osmosis system has been working for about a year, also without a drain restrictor, and it provides drinking water, with about 2 buckets taken from it daily. My third reverse osmosis system - I GOT LUCKY! Because I installed it in an apartment with a water meter, and the arithmetic is quite scary... By the way, I found a photo of the restrictor, and there isn't a single tap on it...

Julie4738

The tap is not on the limiter itself, but on the tube that bypasses it for flushing the membrane (it needs to be opened once a month), that's how I have it. When I open the tap, the water flows wildly, but when it's closed, it flows normally.

Curtis

Could you please clarify? The faucet is open... and... where is the water coming from and going to? As I understand it, the water is going past the limiter and directly into the sewer? Judging by the long operating time of my first osmosis, this is probably the case.

Thomas5021

After the membrane, there are two tubes leading to the Automatic Shut-off Valve - one goes to the water tap, and the other (which goes to the sewage) splits again into two tubes - one goes to the restrictor, and the other bypasses it (the tap is on this tube). After the tap and the restrictor, the two tubes merge back into one --- and into the sewage...

Tammy2040

It must be a very "branded" osmosis. Because on my first osmosis, made in the style of ATOLL, there was nothing like that. There were only pressure sensors, which turned on the pump when the pressure dropped. There were no drainage controllers nearby. Thanks for the info!

Jason

You're welcome, always at your service...

Brian

GTS 550. I have been using it for 4 years. No complaints.

Lauren

Guys! What are the water parameters at the output of the Osmosis?

Samuel6138

I have gH=0 kH=0 TDS 19 - isn't that a bit too low? I haven't tested nitrates and phosphates due to the lack of tests for now. (After moving - it's a bit better than after the flood...)

Joshua448

It depends on the source water - for example, in Donetsk, they usually change the membrane after a TDS of 50.

Kathy

Got it. I'll know what to stick to. I usually use tests, and if the overall hardness exceeds 4, then I change the membrane. But that was regarding freshwater. For seawater - as long as the hardness is 0, it works.

Maria6659

I get 1 liter of water when draining 3-5 liters into the sewer (depending on the temperature of the tap water and the flow restrictor). Also, the performance and lifespan of the reverse osmosis system depend on the order of the cartridges. I have #1 - 5 microns, #2 - carbon, #3 - 1 micron, #4 - pump, #5 - membrane. When I placed the carbon filter as #3, no matter how much I rinsed it, carbon dust would wash out and clog the membrane (after a year, the water flowed not in a stream but dripped, even with the pump present). #3 is in a transparent housing (it's easy to see when the cartridges need to be changed). Water flows into a barrel. Best regards, Cat.

David4089

The conductivity cannot be "0" after osmosis, usually around "7". If the TDS shows 19, it means it's time to change the membrane. Ideally, the TDS should not exceed 15. If the output from the osmosis is more than 10, I am already preparing for a replacement.

Erica752

must be 0

Jason

Do not confuse kH and the TDS meter reading.

Nicholas5194

I apologize, it seems that the lack of sleep has been affecting me lately. I thought instead of KN I should write RN, and that's what I did. Today I will go to bed earlier.

Danielle9144

this is how many ml/min it will pass there is a table, but I think you shouldn't rely too much on it, because if, for example, you change the membrane and the same performance one is not available for sale, you won't rush to buy a new restrictor and many of the restrictors listed in the table are simply not supplied by vendors - usually 350-550

George5104

When I had the 500, I was getting 1 liter of purified water and draining 8-10 liters of concentrate into the sewage, meaning that more water was passing through the cartridges and they became clogged faster. When I switched from the 500 to the 300, I was getting 1 liter of water and draining 3-5 liters, while the quality of the purified water remained the same, and I change the cartridges less often. Sincerely, Cat.

John3165

the link is not working...

Daniel8015

As I understand it, there are no such problems with expensive, branded reverse osmosis systems? In Kharkiv, you can buy reverse osmosis systems priced from 1300 to 3500. They differ not only in completeness (pump, storage tank, additional cartridge) but also in the quality of plastic and appearance. Is it really the case that it doesn't matter which reverse osmosis system to use? Isn't there a difference between a Chinese pump and an original one? Between fittings and seals? Between materials and the quality of plastic?

Amy

yes, anyway

Curtis

Is there a difference between driving a Zhiguli or a Cadillac? Both seem to drive, but there is a difference. If you can afford to spend 300-400 dollars, buy a branded one.

Jacqueline6670

In relation to osmosis, I would rephrase the trip in different cars like this. You need to get yourself from point A to point B. You can do it in a Cadillac or in a cheap car. Either way, you have to get out of the vehicle. I have osmosis systems, of a Chinese no-name brand, but they all share a Cadillac engine! A FilmTec membrane. Prove that a branded housing that costs a couple of hundred bucks more is more functional! By the way, I just calculated that the "first" no-name osmosis system has been around since 2003...

Cynthia

Does anyone here have a "Cadillac"? Can you tell me what the difference is?

Megan

I have a Chinese one. I bought it "to try" - to see if I need this thing "in principle." The connections on the FUM tape are intimidating. It’s comforting that someone is always home. But, I repeat, as a trial - it will do. In a year, I will buy a branded one - there the connections are not scary, but instill confidence. P.S. As for the Cadillac engine in the Zhiguli... well, a Cadillac consists of more than just the engine.

Debra8438

Absolutely no difference!!! The main thing is the membrane, the rest is just a shell and unnecessary show-off.

Brent5588

I want to get an osmosis system here; how is their build quality - very poor or relatively normal?

Phyllis

the link in the comments says...

Adam4310

yeah, it's all show when there's linoleum on the floor and alcoholics living below

Thomas

Where would you recommend finding a budget option?

Michael

I have no idea. Although, when I bought it, there were options. What does "budget" option mean, how much is that? I have one like the one in this topic in post #6. The drawbacks, as I mentioned earlier, are unreliable connections. I check the osmotic water with tests - so far, so good.

Kathleen

I have been using one like this for 2 years. The ratio of osmolyte to condensate is 1:5-6. Two weeks ago, I bought the same one for a friend, 200 money with the original membrane, 130 with the Chinese one (though without a pump. With a pump, it's 70 more expensive).

Anna9752

I see the picture, but what model is it? Where is it sold? It looks like this one - it turns out the Chinese are already making membranes...

Michael

The Chinese do a lot of things, but the quality is crap in most cases.

Gabrielle5053

Can you recommend something better?

Michelle1505

Instead of China, they offer China, but from their own store. Great.

Joseph

You are probably not paying attention. This is not China! However, under the link, there is China with names and prices, but everywhere it says NOT RECOMMENDED. The Chinese product is presented for comparison.

Anthony7814

I don't understand, I have a Chinese system, and a US membrane. How is this osmosis worse than made in the USA? The plastic on the fittings and cartridge bowls is no different from each other, but it costs more.

Kevin262

where is this done?

John3142

Cherry also resembles some Germans.

Heather2018

A Google search can provide an answer to this simple question; it could be Korea, Taiwan, or the USA..., but not China.

Andrea8397

Why are you excluding China?

Linda

There are certificates for everything... There is also one for China, a separate page is dedicated to it on the website, so there is respect for China...

Emily3506

You sell these filters, why don't you mention where they are made, why do I have to search on Google? For example, here is your product description: where is the information about the origin?

Ricardo7341

We don't want to, we want to communicate by phone. It's such a marketing move.

Brianna

ah, well-well.

Joseph8592

1. Can you sell it without a storage tank? 2. Are there filters available for replacement and what is the price of the filters? 3. If any corner or faucet breaks, are there spare parts? 4. Is a fifth filter for the aquarium not needed? Can it be omitted altogether or should there be two outlets?

Kathy

Is it possible to use water after this osmosis that has gone through all 5 stages of its filtration? Thank you in advance.

Eric8832

If it's after 5, then it's possible. If there is a remineralizer (stage 6), it needs to be turned off.

Danielle8118

I have been using the Atol 560E +p (5 years) and Installine RO-550 (2 years). Great!

Nancy

Are you sure that the housings themselves are made of non-toxic plastic and do not leach toxic substances into the water? The entire casing, in which the cartridges and the membrane are located, also comes into contact with water. Has anyone tested the plastic?

Dana6523

Fear has big eyes!

Jacob4800

No... I took it here. I'm not complaining. Are you sure you know "what" is flowing from your tap? Are you sure you know "what" you ate today? Are you sure you know "what" you came into contact with today? No one can be sure of anything. If it's relative, then everything is relative... Are you sure you know "what" you paid more for without getting... more? To each their own, and there is a buyer for every product. The difference is that today the results for "everyone" vary, or vary slightly, but tomorrow the results will be the same for all...

Stuart

Despite all this, I will stick to my opinion, as I have reasons to draw conclusions. "I'm not complaining," but is anyone really complaining? This topic can be philosophized about endlessly.

Rebecca1419

What does fear have to do with it? I have experience.

Robert800

Hello, please share your experience of why it is not possible, as ambiguity raises questions.

James

Hello everyone. I'm a newbie on the forum and in marine aquariums (only a year). I've been using this - the 5-stage reverse osmosis system NEOCLIMAT Aqua Pro 50P-11-JG for a year now - without any problems. I replace the pre-filter every month, and the carbon filters every 3 months. I regularly rinse the membrane for 15 minutes every 2 weeks. That's all there is to it. I'm quite satisfied. Its current price is 1070. The pre-filter costs 15, and the carbon filters are 55-60 each. The main thing is not to choose one with added silver.

Leah

I haven't opened my coal for more than 2 years. I change the 5 microns depending on the color. I changed the membrane once in 3 years.

Courtney

Hello. Personally, I have no objections, I'm not for or against the Chinese product. I can't say anything bad or good about it, as I haven't used it, although who knows. I personally use a product that is labeled as Korean and have no particular complaints, except that I couldn't achieve 0 TDS readings with either the original or the American membrane until I installed an additional cartridge with ion exchange resin. Now the TDS meter shows 0. I change the cartridges every six months.

Darlene4238

The membrane cannot theoretically give 0.

Wendy2244

With drop tests, it can be zero. I couldn't determine it with titration. I changed the membrane from 50 to 100G - it started to be determined at one and a half degrees.

Natasha

So what is the purification process up to the membrane if the maximum lifespan of a carbon filter is 6 months, and ideally no more than 2-3 months?

Laura3673

who knows. they are pre-cleaned with them. actually, carbon filters are needed to remove chlorine before the membrane, which can cause it to fail. maybe I was lucky. mine lasted almost 3 years.

Tanya

Filter "Vodogray" NTT Petrovka Kyiv membrane replacement once a year, cartridges once every six months I regularly measure TDS 2-6 ppm before membrane replacement 9-11 ppm

Emma

Colleagues, Who can recommend from this list, especially the first two links - which osmosis to choose?

John1464

I have been using it for almost 2 years - no complaints.

Lindsey3628

I bought the "CriStal" RO-50P system from filters.org.ua, and they also installed it. I'm satisfied.

Alexandra

I have a question: can osmotic water be compared to rainwater? I can't understand the parameters of osmotic water for non-marine purposes: in a shrimp tank (hardness), watering flowers (dead water), giving water to animals (dead water)... once I rinsed a tube with osmotic water, and it all died.

John1464

Considering our ecology, I wouldn't use rainwater for any purposes. Osmosis needed to be remineralized - the worms would have stayed alive. To water flowers - add fertilizer - they grow like crazy! Cooking food with osmosis - everything is more beautiful and tastier! Making tea - everyone looked into the teapot - that's what we drink, and with osmosis - it's pure! Drinking such water - there will be less sand and stones in the body!

David4968

I don't have a mineralizer, it was probably a coincidence... thank you for the response...

Tracy4603

NO-NO-NO!!! What is needed for aquariums is not a MINERALIZER (a flask like that), but a REMINERALIZER (a liquid that is dosed in proportions)!!! This liquid returns the necessary salts for the life and growth of plants and fish (calcium, magnesium, etc.) to the dead water.

Diana3118

Thank you, Imir. Otherwise, without this amendment, the topic threatened to develop into a living/dead water, seers, sorcerers, apocalypse, and UFOs.

John3335

Better to chew it well than to leave it half-chewed.

Tanner

Although remineralizers have no relation to the sea, they only cause harm.

Destiny

I installed an Aquaphor and I advise everyone "Don't buy it." I've been using it for over a month, the water pH is 7.1-7.2. TDS shows around 30. I have already rinsed it for 2 hours and danced shamanic dances with a tambourine, conclusion 1 - Aquaphor is a radish))).

Laurie3842

And I fell for it - the durability of the tubes and the Russian-American membrane. Along the way, I came across a purely Russian TDS 30-44 that gives out.... Knowledgeable people have written that there are good American membranes. Where, though, I haven't found yet (please recommend in a private message). I want to get resins from AiRife, maybe I'll bring it down to zero.

Amy5468

After the resin, it shows -2, before the resin it was 20-25... also, there's a question about the TDS calibration, it turns out on the same osmosis... just with new ingredients...

Stephanie3084

Recently, I bought a system at the SOKOL market (Textilshchik) in Donetsk from the AquaKut store, representatives of this brand. The system has a Filmtec membrane (DOW USA TW-50) with a hologram, and they are also available separately for sale. Surprisingly, the TDS from the membrane is 4!!! If you're interested, I can send you the seller's phone number in a private message.

Anthony7814

I use the same system, and it was equipped with a Filmtec membrane. The salt content after the membrane is also 4 according to TDS, with a tap water GH of 28-30. I mentioned that I am an aquarist, and they even gave me a discount at Sokole. This configuration is indeed a good system, plus it has a plastic storage tank.

Jennifer7159

Surprisingly, the TDS from the membrane is 4!!! Or 004?

Gregory9432

4 mg/L = 0.004 grams/liter, what is the doubt? It's real! I confirm. It depends on the quality and manufacturer of the membrane, the inlet pressure, and the correctly selected pump according to the membrane's performance. The pump's performance depends on the voltage of the network, etc. I think SVK will agree with me.

Rebecca1419

It's interesting at the entrance to the filter, what TDC.

Jeffrey2277

The technology is American, but the production is Polish. Listen to more sellers; they will tell you something different. Google and see how much a membrane costs in the USA for 100 gallons.

Patricia1746

Yes, that's correct. For example, the American brand Aquafilter has had a branch in Poland for a long time, and naturally, the membranes (and other consumables and spare parts) do not come from the States.

Rodney3101

If two identical membranes in terms of parameters, one of which has a branded hologram, are viewed from the edge, a picture will be visible that suggests they were not made on the same table and from different materials. Where? It remains a secret...

Sandra7004

I read somewhere that the material for membranes is made only in the USA. The best is used for atomic technologies, while the rejects are used for osmosis. The first membrane, after seven years of use, produced about 100 ppm. During the entire time of using osmosis, I used three membranes (which is certainly not a significant indicator), and I didn't notice much difference, nor did I really worry about it. It would be interesting to hear from someone who has worked with dozens of membranes.

Darlene4238

I am going to set up a marine aquarium. There is a reverse osmosis system with a post-filter and mineralizer. Can you tell me if I need to remove the mineralizer for the marine setup? And what happens if I use mineralized water?

John1464

Buy a tee and a valve, and make a branch to the post-filter and mineralizer. Then connect a cartridge with DI resin to this branch (this is ideal water treatment for the sea), or do not connect the DI resin (this is mediocre water treatment). At this stage, it's hard to explain in a few words... Synthetic sea salt already contains everything you need... And anything extra will only be harmful!

Brianna

Thank you, I don't have the volume and level to set up the di resin. It would definitely be worth installing a tap. Although you can also play around with switching the tubes.

Brenda

In my opinion, the mineralizer should be removed even without the sea. Why do we need artificial mineralization? To wash the kettle more often? We get enough minerals from food. My family has been drinking osmosis water without a mineralizer for a year now and we've gotten used to the taste. And tea and coffee, in particular!

Brian

I have an acquaintance who had his gallbladder removed and is essentially disabled due to his condition. He started changing his lifestyle by switching to distilled water 12 years ago! He also increased his intake of "vegan" products and eliminated industrial bread. He says he has recovered now, but he particularly relies on distilled water. I mention this because there are already people who have been using distilled water for quite a long time, and their health is not regressing; on the contrary, it has generally improved...

Robert1845

Yeah, I have one like that, I got it this winter, specifically looking for an American one. Actually, not long ago I bought pre-filters, and they sold me ones that are neither American nor Polish, supposedly from Italy, although I might be mistaken.

Nicole2404

Who can advise - yesterday I installed a Chinese reverse osmosis system with a Filmtec membrane (the same one was described a page back) and the TDS after the post-filter showed 16, while right after the membrane it was 12. But this was almost immediately after connecting the system, and half of the 12L tank hasn't been used yet. When I asked "will it be 0," they said that such membranes can hold up to 8-12 and that I should let a couple of tanks pass, then the TDS might drop a bit. Is this realistic or will it stay at 8-12? And what is the exact name of the DI resin for seawater? Thank you in advance for the answers.

Susan1358

I would remove the storage tank and the post-filter altogether, leaving only 3 main cartridges + membrane; 12 at the output is an excellent indicator... it will be more than enough for the sea, just remember to rinse the membrane and change the cartridges at least twice a month.

Robert800

If you want 0, we take the water from the osmosis membrane and feed it to the 2DI cartridge! Taking water from the tank is not the best idea. It can stagnate there, and who knows what the Chinese made that tank from. If you've already spent one and a half thousand on osmosis, add another 400 for the resins so you won't have anything to blame later.

Wendy2244

I haven't noticed any deviations in the aquarium due to the storage tank. The product is of Russian manufacture (although this is also not a Quality Mark). I connected the osmosis according to this scheme, which I am generally very satisfied with:

Wesley

+1 I have it connected the same way. From the TDS-15 tank after the resin - 0.

Tracy

Today I measured the TDS, it's already 10.

Michael5242

Do you take water for drinking BEFORE osmosis? What's the point?

Melissa2062

Could you tell me what these resins are?

Andrew9246

DOWEX MB-50

Cheyenne2747

People, please advise me. I turn off the water at home every day because no one is there. Is this harmful for the osmosis or not?

Hunter1471

No. Today I measured from the tank - 30 liters. 5-6 liters. Then, together with the osmosis after the membrane, it added up to 10 liters - 20 liters. That's why I didn't notice that I had already measured it only when the container was full. And it always has 0-2.

Amber9312

So, after standing in the tank, the TDS increased, right?

Jason5071

Yes. Apparently, it dissolves something from it.

Stefanie9771

Remember that TDS measurement is just a measurement of resistance. And that water, even when stored in guaranteed inert containers, absorbs CO2 from the air, becomes acidic - and there you have an increase in conductivity. Although it seems airtight and CO2 shouldn't be coming in from outside, there are enough dissolved gases in the water.

Aaron

Recently, I discovered the same thing - except that draining all 12 liters from the tank resulted in 20 ppm, and after the resin, it became 6-7. This is despite the fact that I replaced all the filters, the membrane, and the resin with new ones!!!! The issue is indeed with the tank - no matter how you look at it, a lot of stuff accumulates on its walls over time. I assert this because when the system was new, I had 0.00 ppm at the output. Conclusion: - For those who don't need water from the reverse osmosis system for household use, remove the tank or don't buy it at all. - For those who use the water for household purposes, close the valve on the tank and drain it to get full zeros.

Michael826

I didn't take the barrel right away. One bottle for household use, another for the aquarium.

Heather

I have distillate dripping from the condenser with a pH of 4.8-5.0 ppm=0. When can I expect the conductivity to rise?

Amanda5586

I always have TDS-15 coming from the tank, even after a day. After the resin-1, now, two months later, the TDS after the resin-2. At what TDS value should the resin be changed?

Susan1358

Offtopic You know as well as I do that distillate and osmosis are fundamentally two different things. In distillate, the amount of salts is significantly lower than in osmosis. Again, gases escape into the atmosphere during boiling and distillation. As for 0, that's the sensitivity of the instrument, not actually 0. Also, I never stated that this is necessarily due to CO2 (and other gases...), but rather as a possible reason for the change in ppm in the tank.

Michael5242

I changed it when it started leaking at 7. Many pour it straight from the tap - if only we knew which specific elements are in these two.

Tasha

So if I have a 5-liter storage tank, and for example, during the day it fills up with water, can I not use it the next day? Does that mean I need to collect the water somewhere else and salt it right away?

Darlene4238

Take the TDS and check the water at the outlet with the tank open - then close the tank and check the water directly from the membrane - without the tank - you'll see for yourself. Or maybe your tank is clean and it will show the same number either way.

Rebecca

I had water sitting in the tank for a week, and it showed a TDS of 2 ppm; from the tap directly (bypassing the tank), the TDS was also 2 ppm (Aquafer RO).

James8887

So it's a clean tank.

Elijah7048

People, please help. Yesterday I connected the osmosis system and I have a question about the membrane. On its wide part, there is a sealing rubber at the bottom wrapped in white tape. Should I remove it or not? And one more question: the installation instructions say that this rubber should be lubricated with silicone grease. Is that necessary?

Amy

The tape holds the sealing ring in place, so it shouldn't be removed. I have never lubricated it and have had no problems.

Sarah7284

Please advise, I installed an osmosis system and the TDS meter shows 6 - 9 ppm. Is it safe to use this water for starting an aquarium?

Angela

I haven't applied the resin yet - I was pouring osmosis 20 and 30.

Adam

Can one use osmosis without resins, or is it still not advisable? What issues can arise without the use of resin?

Maria6659

Off-topic, I used Max's distillate for six months. While it waits in the canister for my arrival and I prepare everything - in short, there was 20 liters, no matter how you look at it. The live rocks didn't get covered, but once I had cyanobacteria. Whether I brought something in, whether something accumulated, or if it was from the water is hard to determine here - there are a lot of possible factors besides water preparation. But nothing critical happened. P.S. Although we've already moved on to another topic that doesn't directly concern the product.

Tracy

10ppm at the output, 200-210 at the input (260 at the input hot, measured out of curiosity, but I use a boiler). Filter: 5-carbon-1-osmosis-post-filter coconut (the packaging says made in the USA, although they are not expensive).

Denise

For those with a clean "0", were they calibrated? Thermal compensation and other factors? Someone once told me in "Installer": "Change the membrane when the leak in the tank stops." But I change it every two or three filter changes, and I change those every three months. I really only give osmosis 50/50 to the shrimp/barbs/rooster - they have a pot-sized volume. 350 liters may not seem like much, but they are on boiler + cold water.

Nicholas5194

I believe that the filter AFTER the reverse osmosis membrane is unnecessary. I immediately stocked up on filters and am waiting (perhaps in vain) for the time to replace them. A year has passed since the installation of the osmosis system. During this time, I have collected approximately 6 liters x 365 days = 2,190 liters of water. I regularly monitor the TDS meter readings. So far, there have been no increases in the readings. From time to time, I flush the membrane manually. When should I replace the pre-filters and the membrane?

Ryan

When the TDS or PPM readings of reverse osmosis water are not satisfactory. Another option is based on the output. I changed the membrane once, but not the pre-filter. They were completely clogged with salts/debris. But the filtration was crystal clear! However, the "output" in terms of volume was weak... In general, it's all up to the cook's taste... P.S. Regarding the current state of freshwater life, I don't see any difference between having 15 ppm at the start of the membrane or now having 45...

Meghan

In the eyes of installers, pre-filters need to be changed every 3-4 months (based on practice and even by smell)))), the membrane should be checked for clogging, I don't know if the post-filter is necessary or not, but it really wouldn't hurt after the "settling tank," according to experienced colleagues - directly, without the tank, and if it's directly for fish, then it's clearly not needed...

Guy

Yesterday I replaced the membrane with a new one. Filmtec 100 gallon. The water at the outlet is 60 ppm. I'm horrified. The old one was removed with a low water flow and also produced 60 ppm. And now this from scratch... I'll wait a little longer... Maybe it will stabilize... Although it's unlikely...

Bryan1851

And at the entrance?

Karen81

1. What does the TDS meter show from the tap? If it's over 2000 ppm, then it could be 60 at the output. 2. I hope the measurement was taken right after the membrane without post-filters and a storage tank? 3. The membrane should have been flushed forcibly (open the flush valve for about 10 minutes).

Melissa

I don't remember the manufacturer like this!

Kristin

So, after a day of continuous operation of the membrane, I got an output of 30 ppm. No post-filtration. The output has a lot of "contaminants," red neon fish placed in this water die 50% after a day or two. "Rhodostomus" also, by the way. There's no need to bring it to 1.5-2 dGh. Meanwhile, everything is fine in pure distillate. The scalar fish don't care... Before the membrane, it was 500-550 ppm. By the way, I made a "gentle mode of operation" for the membrane. I removed the drainage limiter. Accordingly, the performance dropped.

Russell8484

I assume it will drop to 20 ppm.

Mark7376

Guys, the osmosis shows 26 ppm after the membrane. Where can I buy a flask and resins? What resins should I use? And how to connect it? Or should I just leave it at 26?

Heather2018

I was warned that going above 10 is undesirable, although at the start it showed 10-12. It's been 2 months, but I haven't measured it. I bought DW50 resin and three new filters, but I haven't installed them yet. The output really depends on the region. We have very poor water in Dnipro.

Cheyenne2747

Is 9-11 pm okay?

Melissa

In the A.I. Rife, at one time, if needed, they would send it with a flask!

Craig7302

These parameters are not acceptable for you at all. Be sure to use 2 resin flasks; if I have a value of 007ppm, I change the resin to a new one. The flasks seem to be available on Airife, and the resin is also there; I have FAUNA resin.

Diana8604

I installed a Geyser Prestige 2, based on the advice of some herbalist friends. The installation is very simple. I've only been using it for two weeks, so I don't have much data yet. Before osmosis, the water was 330-340, and after, it's 9-11.

Karen

For example, here He has a set that is quite expensive, but the resin can be purchased. It’s cheaper to get it at By names [LP-001WP] Cartridge for reverse osmosis system with lid 2 140.00 [4044] Elbow (1/4", 1/4") AU4044, for reverse osmosis systems 4 40.00 [lx-002k] Empty cartridge for filling with filter material 10" 2 30.00 [S090195] Insert for mounting tube AUS090195, for reverse osmosis systems 8 4.00 [w120091] Mounting panel for Slim filter 2 60.00 And a faucet with a hose is also necessary. If they don’t have cartridges, you can get them at

Bridget

The osmotic systems here are very good!!!

Kenneth7331

People! Please advise if anyone knows, I am completing a three-stage filter with a reverse osmosis membrane, and the seller in the store insists that I need to buy a 4-way valve. I can't understand why, since I won't have a storage tank, mineralizer, or post-filters. Can I connect it directly without a 4-way valve???? I was told that if I connect it directly, the membrane will fail. Is that true?

Ronald

Hello. I think we can't do without a 4-way valve. Best regards, Alex

Alec9378

If the system will be under constant pressure, then yes, a four-way valve is necessary. If you install a tap before the three flasks and only turn on the system when needed, then it can be done without it.

Dana6523

In principle, it can be done without a valve (it is needed to stop the water when filling the tank), but a post-filter is desirable because there is a bad smell dripping.

Stefanie9771

Maybe someone uses this system, interesting reviews.

Frank7213

Dear forum members, all osmotic systems are good (and the systems installed by marine aquarium enthusiasts are made in China, Poland, and the USA, and if everything is installed correctly with an approach to marine aquaristics, then all companies work perfectly). The conclusion is one and it is clear, and advertising stops!

Cheyenne2747

This is a flask with ion exchange resin. Its suitability can be checked by opening the tap after this flask. Measure TDS with a meter. The numbers should be below 10 units, ideally 000. The tap should allow enough time for ion exchange. The resin replacement costs about 120 for the flask. It is better to replace the pre-filters, their price is minimal.

Eric5208

Thank you! Did I label the sequence of inlet, drainage, and outlet in the aquarium correctly?

Michelle1505

The entrance is correct, but I'll check the aquarium and the plumbing at home.

Elizabeth

I connected the osmosis system, but I encountered a problem - as I understand, the one-way valve is leaking at the seams. Not only is it dirty and won't clean up, but water is also spraying out of it in the middle. Is it okay if I fill the water without it for now?

Lori4746

I got the DTS meter like this: input 207 after three flasks and the membrane 007 after all filters and the ion exchanger 000 Right now I'm filling the aquarium... The pressure is very low. The filling speed is about 9 liters per hour.

Theresa5149

Faster is not necessary, the main thing is at the entrance to the aquarium -000.

Lauren

Everything is great.

Bethany

Have you ever seen a value of 0 million-1? Osmosis works pretty well.

Kenneth2761

What is this about? Please explain more clearly what you meant by this or what you wanted to ask?

Shelby3182

The water quality (TDS) after osmosis is usually the same as that of technical distillate: 3-7 ppm. It's surprising how well it filters down to zero.

Phyllis

This resin filters very well! I mixed up the hoses from the reverse osmosis to the resin with the return hose to the sewage, so instead of connecting the osmosis to the resin, I connected the sewage to the resin. Before the resin, the readings were off the charts - I don't remember how much, but over 100, and after the resin, it showed 0.05 - 0.07.

Kevin8087

It seems you didn't read his post carefully; he wrote it after all the filters and the ion exchanger 000, and the ion exchanger is DOWEX MB-50 resin, hence the zeros.

Ryan2281

Hello. Could you please tell me if the reverse osmosis system will work without a pump with an average pressure of 2 bars in the water supply? And can a pump be purchased separately and installed by oneself if needed?

Curtis9143

If it's on the 9th floor, it will be very, very slow, but if it's on the 2nd floor, it will be faster. With a pump, it's twice as fast at any pressure. It can be delivered easily.

Andrew419

Does the volume of water drained into the sewer and the membrane's lifespan affect the filtration rate?

Stephen

Let's go, and your next question will be, how much do we pay for water then?!

Thomas

I just have never held this device in my hands and I still have a rather vague idea of how everything works. The price of the filter with a pump differs significantly from the price without a pump, but if the distillate drips for several hours while a stream flows into the sewer or if a slightly clogged membrane stops working under low pressure after, say, a hundred liters, then it’s better to get the one with a pump. However, if the negative factors are limited only to wasting time, then it’s not critical for me, and there’s no need to spend extra money.

Debra8438

Don't be lazy, read, everything has long been available on the internet. Not only the time, but also the membrane and the amount of water. There is also the parameter of the inlet water temperature and its contamination.

Melissa3200

If you buy the pump separately, you will overpay significantly.

Stephen5841

With insufficient pressure, the sewage system will whistle normally... result: - rapid killing of pre-filters; - high water consumption. You can ask about the sufferings...

Maria6659

Indeed, Dmytro is right. The reverse osmosis system worked for a week, and even the water didn't flow, with a maximum pressure of 2.6. Then it worked for a couple of months. After that, I bought a pump from Dima, and everything has been working great since June. Dmytro is a specialist in his field, and I recommend him to everyone. One of my friends also bought a reverse osmosis system from him, and another one wants to get the same setup.

Gary6376

I agree. I have an ECOSOFT Filter1 RO5-36P with a quiet pump myself since summer. I'm as happy as a clam.

Phillip9722

I use Atoll 560. For 2 years, I haven't changed anything except the pre-filter (100 rubles). I use it for both the aquarium and drinking water. For the aquarium, I additionally installed a SpectraPure ion exchange column. The aquarium is 300 liters. I plan to change the cartridges soon. The output from the reverse osmosis is already 15, from the column - 1. P.S. I would have preferred to get the 575 now - it has a slightly higher performance.

Angela

And so what, is that a problem?

Stephen

Some people really consider it a problem. Or they ask to replace the membrane after a year (well, the manufacturer recommends it!). I ask why replace it if the TDS is ten? The answer is - Don't you know that bacteria start to live there? Damn, I think to myself, I'm such a fool, how did I not realize that exactly 365 days after installation, bacteria start to live in the membrane... I ask - do we also replace the tank, faucet, and tubes after the membrane? Or does no one settle there? ...... I'm at a loss.

Nicole

My membrane will be 5 years old in June 2016. The TDS meter shows 13 after the post filter. The guy who services it told me when he did the maintenance in December 2015 that it would be time to replace it in the summer. He said it's strange that it's still working quite well... In general, we'll see in the summer whether I'll change it or not... Although the recommended replacement period in the service book is 2 years, I have to give him credit for not just saying to replace it and that's it...

Andrew4194

The question has been raised more than once. The membrane reduces the salinity of the water, and that's it! There is no point in changing the membrane until 50 ppm.

Hunter1471

If normal pre-filters (i.e., chlorine, phenol, and other "useful" substances do not reach the membrane), and the water is not too hard (or rather, if it is properly flushed during operation), then what will happen to it? Although sometimes a fungus can get in (most often, it is fungal growths that create a lot of problems, not bacterial ones), which can clog the carbon to "impassability." Well, it should be clear to everyone (except for sales consultants) that bacteria will be present after 3-5 days of operation - osmosis is not a sterilization method.

Stephanie9175

The main feature of filters that use reverse osmosis technology is the almost complete sterilization of water. A water molecule (size 0.3 nm) passes through the filter, but most chemical impurities and biological inclusions, particularly microorganisms and viruses (sizes from 20 to 500 nm), do not. For example, the filter can retain cholera bacteria or hepatitis viruses. In my opinion, if you don't touch and don't blow into the tubes/tanks after the membrane, the output will be water close to sterile.

Jeremy8404

complete nonsense. The nitrate passes very well.

Mark7376

I agree about the nitrate, I don't, but it seems to me that nitrogen and oxygen molecules are roughly the same size, which is why the membrane allows them to pass through (that's what I think, I could be wrong). Bacteria, on the other hand, are tens of times larger and should be washed off the membrane into the effluent.

David3217

The fact that a bacterium (fungus, mycoplasma, etc.) cannot pass through the membrane does not prevent it from growing on both sides of it. In installations for "sterile" water (for example, for growing cultures), an additional sterile disposable filter is attached at the outlet. But the good old autoclave is much more reliable.

Shane

There are already topics:

Ryan

Very interesting articles:

Joseph1346

Organic substances, as well as chlorine and many other things, need to be removed before the membrane. The same carbon, which needs to be replaced (if, for example, the water is heavily chlorinated), is recommended to be changed much more frequently, about every six months. Otherwise, even if you install five membranes, they will not be able to purify what they theoretically cannot clean. For example, phenol (from what I remember offhand) is actually concentrated rather than removed. Therefore, resins and carbon will not interfere between the first and second, third stages; they do not require frequent replacement but help protect the second and third membranes from passing contaminants.

Michael3221

No. It's not about clogging with dirt or chemical destruction of the membrane by chlorine. Some substances (phenol is the most striking example) are not removed by reverse osmosis but rather concentrated. And with each stage of "purification," the concentration of such substances will only increase. Therefore, they are maximally removed during pre-treatment and further purified during post-treatment.

Sarah

Why not an uncalibrated TDS meter?

James8887

The TDS meter has nothing to do with it. I'm sure. Most likely, the membrane was changed from 50 to 75 without replacing the flow restrictor. Or the restrictor has Chinese-Korean roots. (Insufficient drainage, TDS is higher than it should be, the membrane will die sooner).