Sounds like the pump isn't pumping air. Is it new or old? How old?

How many feet of water are over the top of the diffusers?

Last edited by esshup; 09/13/21 03:13 AM.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).