Hi, I have been setting up my new 90 gallon tank with my dad. When we ran it for the first time we noticed the overflow box was very loud. We put something on the return to reduce the flow from the pump and it stopped the noise. This thing was a big l shaped 1/2 inch PVC thing. We got a return sprayer nozzle to put on, thinking it would do the same thing. The noise came back though. Does anyone have any ideas how to stop it without making any major plumbing changes. Please be free to ask questions.

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