Recent content by Mutagen

Hi Dumb Guy, This design is not really new, at least not in my opinion. It is really a modification of the EuroReef design except that with the EuroReef, the feed pump is also the venturi/aspirating pump. But I think the idea is good because I have run a very similar DIY design for several...

Seven ephors, To be honest, I had not actually carried out the calculations to check energy consumption vs the ratings on power heads. I was judging the pump efficiencies against typical industrial applications where well made centrifugal pumps have efficiencies from 75% to 82-83%. So when i...

Richard, Thanks for the power data. I agree 10% extra should be no problem at all. Given the problems some people have had with "certain" brand power heads I really didn't want to depend on the thermal protection in the motor! Since I suspect the modified pump is moving at least 50% more water...

Richard, Just thought I'd add some info about modifying pumps. I'm sure you already checked out potential problems but I didn't see any comments in the article. Pumps and motors are designed as a unit with the motor chosen such that its power output matches the power requirements of the pump...