• Sydney

Hello everyone. I've missed the sea, so I decided to make a small pond. I bought a PVC check valve. However, it has a stainless steel spring, and I understand it won't last long. Has anyone come across plastic springs, or how can I modify it? The valve will be installed on the return from the sump.

Anthony7814

Spring-loaded check valves are used for horizontal positions. Ball valves (without springs) are used in vertical positions. In your case, a ball valve was needed to eliminate metal in seawater.