When water falling to the clean filter socks, it making noise. You can get the plastic mesh canvas sheet from Joann(Joann item#16057192) or other craft store, cut it to the size, put on top of the filter socks. If the water blow away the mesh, put a small piece of rock to hold it in place. This DIY sock silencer works very well. The plastic mesh also can be used for DIY algae scrubber.Ok, how did you know I was looking for a solution for a sock silencer? Can you explain what you did here?