I have noticed over the past few years that occasionally my kitchen sink faucet will smell like rotten eggs. I presume this is from sulfide in the neck of the faucet that was not under pressure. So i think there is hydrogen sulfide in my source water. We used to have really good ground water here but many people have moved here over the years. there are thousands of wells and septic tanks in this county. also they did frakkin here a few years ago. either way my source water is around 550 tds. So im burning through one canister of resin about every 200 gallons. Going in there is 6 to 8 tds and it smells like sulfer.I don't have room for a de-gassing container in my sump room. my question is can i add an anion or cation resin before the mixed bed to save on resin, and if so which one?
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Randy Holmes-Farley
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An anion resin will preserve the mixed bed if CO2 is a problem (meaning elevated). The reason is that only the anion resin is needed to eliminate the CO2. A cation bed won't do anything about it. But if you do not have CO2, the mixed bed will deplete at the same rate, meaning the anion part of it will be preserved, but the cation part will deplete just as fast and require replacement.
Randy Holmes-Farley
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This page describes treatment options to remove sulfide from tap water:
http://extension.uga.edu/publicatio...title=Removal of Hydrogen Sulfide and Sulfate
http://extension.uga.edu/publicatio...title=Removal of Hydrogen Sulfide and Sulfate
So thanks for the reply. Do you think the sulfide may have already depleted my carbon block filters? maybe i should change them as well. we have chlorine but no chloramine. So far i've probably ran 500 gallons through them.
Randy Holmes-Farley
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I don't think that sulfide clogs the surface. I think if there is an effect of teh block on the sulfide, it comes from the surface catalyzing the O2 oxidation of the sulfide to sulfate (which doesn't small and is rejected will by an RO membrane).
jsker
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ahh, yes I see. I the sediment filter, two carbon this up to the ro membrane then in to the DI. In the DI chamber I run 1/3 Anion Resin(stinky fish resin) and 2/3 color changing resin. It was suggested to run the resin like this by AquaFx. I was burning through DI resin like yourself and came to the deduction that is was the chloramine in the water.Thanks for the reply jsker. Already running a booster and duel carbon blocks. Probably just start buying resin in bulk.
The resin in the last chamber is from November I think. Still has some more time
