07-31-2011, 04:36 PM
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Powerhead as a sump question
Ive asked this question in a few places and got cryptic answers. In my search I keep ending up on reverse flow powerheads but they were designed for that. heres my question I wrote it down so I could copy and paste it as again, no one has given me a difinitive answer of can it has it experience. i read an article that really intrigued me about a sump tank...
Trying to build a sump tank thats higher than my tank. using powerheads to pump water up into the filter (55 gallon tank), gravity fed down ( i can drill side as its not tempered). I know with air pumps sometimes without a check valve (and thats not gauranteed) they can reverse pump if you had a interruption in power, is this also true for powerheads? I understand when the motor turns on theoretically it should push out (impeller should turn clockwise) could interrupted power cause the powerhead to (with a back pressure) siphon? I want to say no, but its not something ive had to deal with before, so i wanted to ask first.
thank you for any answer as i cant go forward without more info.