best overflow

matt b

Active Member
im looking for a good overflow for my 55 and it needs to be 800gph or more and i dont want to do the diy 1s and what do u think about the CPR overflows
 

earlybird

Active Member
CPR style overflow requires an air pump to lift the water and I've read about people having start up problems with them after a power outage. Not good. You'll probably need a dual pipe/drain overflow. Go with a U-tube style, if kept clean they should never fail.
 
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