AquaKey Posted November 20, 2021 Share Posted November 20, 2021 (edited) How many stages are recommended for the Portland area on bull run water? I'm in Tualatin in case it's any different down here. My TDS right now from the tap is 30 Looking to buy a unit. Edited November 20, 2021 by nkaihani Quote Link to comment Share on other sites More sharing options...
Parzifal Posted November 20, 2021 Share Posted November 20, 2021 Should do at least 4 to ensure pure water, the more stages though the less each is stressed and longer each membrane will last before replacement is necessary. 1 Quote Link to comment Share on other sites More sharing options...
pdxmonkeyboy Posted November 30, 2021 Share Posted November 30, 2021 you want a carbon kdf filter to break apart the ammonia/ chlorine bond. But that upstream of your DI cartridge. Quote Link to comment Share on other sites More sharing options...
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