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Nicholas5194
James1625
Here is the approach to the matter "BOUGHT IT, THEN DECIDED"
Try soundproofing the entire cabinet from the inside.
Amy1672
I did this first, then I installed the pump on the foam, got rid of the sloshing water, but it feels like the cabinet itself is vibrating and creating a hum in the surroundings.
Katie3017
What is the cabinet made of and on what type of floor is it standing? Check with a level how it is positioned.