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#1
04-07-2010, 03:52 AM
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Google 'zero waste ro systems' and you will find a number of different approaches to cutting down the amount of waste water. All have pros & cons. Three main ones are pumping waste back into house hot water system, recirculating waste back through the RO membrane and permeate pump.
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Mike 77g sumpless SW DIY 10 watt multi-chip LED build  http://www.canreef.com/vbulletin/showthread.php?t=82206
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#2
04-07-2010, 05:30 AM
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The more expensive systems are closer to 1:1 good:waste. That's still 50% going down the drain and for the extra $$, you'd have to waste a HELL of a lot of water to make up the difference. If cost isn't your only concern (good for you) then your options are really only those already mentioned (all of which are of limited value and are generally a PITA !).
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-Mark 29 Gal Bowfront w/24" LED Lights. DIY HOB Sump (5.4 Gal) MP40. Orange Spotted Watchman Goby, 2 Clownfish and a few hermits.
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