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#1
01-18-2011, 10:32 PM
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RO System Replacement Filters
I assume that out of all the stages in my 4 stage RO system, that the membrane is the most important?
I'm wondering which one to replace first, as they are fairly expensive, and breaking them up over a couple different purchases would be a lot easier on the pocketbook. Thoughts?
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 They call it addiction for a reason... 
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#2
01-18-2011, 10:37 PM
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I figure that unless your TDS is going up then a regular switch of the cheap filters is all you need. Some people get a year out of their membranes. I'm lucky to get six months due to the high solid content in our water.
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250 gal display tank plumbed directly to my wallet
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#3
01-18-2011, 10:39 PM
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Actually I find that replacing all of the cartridges is the best solution, and they are not that expensive. I have been buying them from Kevin @ Red Coral and the pricing is quite low.
Now I don't run DI, so I can't say what cost is there, but carbon, media filter and membrane was like $30 or so bucks for everything from Kevin.
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 Setup: 180G DT, 105G Refuge (approx. 300lbs LR, 150lbs Aragonite) Hardware: Super Reef Octopus SSS-3000, Tunze ATO, Mag 18 return, 2x MP40W, 2X Koralia 4's Wavemaker Lighting: 5ft Hamilton Belize Sun (2x250W MH, 2X80W T5HO) Type of Aquarium: mixed reef (SPS & LPS) with fish Dosing: Mg, Ca, Alk
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