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01/08/2007, 12:37 AM
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#1 |
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Registered Member
Join Date: Dec 2003
Location: Winnipeg, Canada
Posts: 1,955
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Booster pump, worth it for me?
-My tds on city water 92 ppm
-75 gpd membrane -Pressure is 60-70 psi going in, coming out it varies from 23-45 psi. I want to increase the efficiency of my RO unit and use less DI resin. Will a booster pump give me any appreciable help? Right now my tds after RO hovers around 10. It starts at 1 or 2, but I don't feel like changing my membranes every 2 or 3 months.
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When all else fails, turn up the flow!!! Current Tank Info: 250 starphire, 169 g sump in basement, 3 x ROIII on moving light rail, 4 icecap powered T5s, 2 URI VHO actinics, 55 X turnover with 2 OM units, zoos, clams, SPS |
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01/08/2007, 08:34 AM
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#2 |
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Registered Member
Join Date: Aug 2004
Location: Ballwin, Missouri
Posts: 10,358
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You are in a good range now. I usually set mine right about 70. Increasing the pressure more "forces" more through the ro membrane. Your membrane should last a couple years although the pre filters should be changed regularly. DI resin is just a function of adding up gallons and tds going through it. It doesn't last as long as most think.
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Some drink at the fountain of knowledge, some just gargle, but most are rabid. Current Tank Info: 180g sps+75 softy/lps on one system tunze's, seio's, mjmods, aquacontroller w/add ons, 2X400 XM10000 and 3X160 vho actinic, 110g sump, 110 frag tank, Geo Beckett and other stuff |
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01/08/2007, 08:42 AM
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#3 |
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Registered Member
Join Date: Oct 2005
Location: Pittsburgh, PA
Posts: 647
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With that much pressure drop, it seems that you need to change out your carbon/sediment filters.
You should be getting at least a 95% or so rejection out of just your RO 
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01/08/2007, 11:22 AM
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#4 |
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Registered Member
Join Date: Dec 2003
Location: Winnipeg, Canada
Posts: 1,955
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The TDS of 10 is even when I change my two pre-filters (sediment & carbon).
I think part of the reason is I have 100 feet of 1/4 inch RO tubing prior to the unit that I use to cool my sump and heat my incoming water. I may change that tubing to 3/8 line and see what difference it makes.
__________________
When all else fails, turn up the flow!!! Current Tank Info: 250 starphire, 169 g sump in basement, 3 x ROIII on moving light rail, 4 icecap powered T5s, 2 URI VHO actinics, 55 X turnover with 2 OM units, zoos, clams, SPS |
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01/08/2007, 11:25 AM
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#5 |
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Registered Member
Join Date: Dec 2003
Location: Winnipeg, Canada
Posts: 1,955
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Assuming I can get a good 60-70 psi at the unit, will it still be worth it to get a booster pump?
I think some of them can go up to 120 psi.
__________________
When all else fails, turn up the flow!!! Current Tank Info: 250 starphire, 169 g sump in basement, 3 x ROIII on moving light rail, 4 icecap powered T5s, 2 URI VHO actinics, 55 X turnover with 2 OM units, zoos, clams, SPS |
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