very good point thank you both for the heads up. One other question a local reefer has a quietone 4000 pump he said I could have for $20 with an extra impeller and shaft. It is rated for wet or dry use so which ever way I decide to go it would work, also it is rated a little over 1000gph which is more than my current overflow can do he recommended t'ing off the return and dumping a portion back into my
fuge to increase flow there without a power head. The pump has about 1 month of use on it and looks brand new. Any thoughts on the quality of the pump and if t'ing off the return flow would be greatly appreciated.