I have a well water. We remove the sulphur smell and kill the sulphide reducing bacteria (SRB's) by adding hydrogen peroxide. We then filter with Centaur Carbon. It does a pretty good job. We have a 75 Gallon per day RO system (Hydrotech) hooked up downstream of the centaur carbon filter. It takes the TDS from 450 down to 40. The TDS is mostly sodium. Our water is pretty soft. RO filters seem to last forever (+7 years), but the prefilters (sediment and carbon) can plug up fairly quickly and occasionally they get fouled by SRB's who made it through the system (probably fouled by SRB's twice a year, and changing carbon half a dozen times a year due to plugging - sometimes it won't plug for 12 months, but the next time a filter might last only a couple weeks. I don't know what is going on; the pre-sediment filter never seems to plug, but it gets replaced when fouled by SRBs). We started with 5 micron carbon prefilters, but they plugged instantly. We've been using 50 micron (green) carbon filters for +10 years now. They work best.
I've been debating two things:
1) I've been debating running without a carbon filter. If I have any slippage of peroxide past the main carbon filter into the RO system, will that do any damage to the membrane? Will the H2O2 pass through the membrane? Any concerns if it does pass through?
2) Instead of feeding the RO system with water taken after the Centaur Carbon, I've wondered about using water that still has peroxide in it. I'm thinking that might take care of any fouling of the RO system due to SRB's.
Thoughts?
I've been debating two things:
1) I've been debating running without a carbon filter. If I have any slippage of peroxide past the main carbon filter into the RO system, will that do any damage to the membrane? Will the H2O2 pass through the membrane? Any concerns if it does pass through?
2) Instead of feeding the RO system with water taken after the Centaur Carbon, I've wondered about using water that still has peroxide in it. I'm thinking that might take care of any fouling of the RO system due to SRB's.
Thoughts?