methinks it would be a mighty fine balancing act.....trying to match flow rates of two different pumps will be tricky and I would suspect that you will be constantly adjusting and tweeking the times as the pump/hoses get dirty.....and then there is the "what ifs".....what if one of the pumps fail or doesnt start properly?....might be a flood or a return pump running dry waiting to happen.....that and mechanical float valves have been known to fail
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260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa). http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here http://www.vimeo.com/2304609 and here http://www.vimeo.com/16591694
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