OblongShrimp Posted November 7, 2015 Report Share Posted November 7, 2015 As I am increasing my number of tanks I broke out my AV-150 again to run some new tanks. It is currently running 6 HFM filters (4 10gal tanks and 2 15gal tanks). I tried to hook up 2 40 gallon HFM filters each with 2 outputs and it doesn't seem to have the pressure to run it correctly. This morning I tried hooking up my AV-50 (currently being used on some other tanks) and it ran the 40 gallon tanks just fine. I am thinking some of the rubber parts in the AV-150 may be shot (filter is 8 yrs old or so now). I read that they still sell these parts under AP-100 now and I can get them at kensfish.com. Does it make sense that the diaphragm or something is just going out on it? I plan to take it apart to check it out but I just disconnected it and it is way to hot to touch and work on right now. Quote Link to comment Share on other sites More sharing options...
35ppt Posted November 7, 2015 Report Share Posted November 7, 2015 I'm not at all familiar with the AV150, but I have replaced the diaphragms on my air pumps. Sometimes rotted, sometimes cracked. Snap a pic when you crack yours open, I'm always interested to see the inner workings Quote Link to comment Share on other sites More sharing options...
Soothing Shrimp Posted November 8, 2015 Report Share Posted November 8, 2015 Diaphragms do wear out. I'm with 35ppt. Open the case and snap a pic. Quote Link to comment Share on other sites More sharing options...
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