RODI Well Water Advise
- Thread starter Kayceejake
- Start date
I would do a BRS 5 or 6 stage. They are cheap and work well. Make sure to get the 75 gpd or 150 gpd versions. Avoid "high output" versions cause they will eat through resin like nobody's business.
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Your gonna eat through DI resin regardless. I have a client who lives just below lookout mountain and is on well water, even with a 5 stage rodi im still changing his DI every few months. He has a very large whole house filter and water softening system that filters the water before the rodi.
I have found that running a high capacity DI resin cartidge followed by a cation DI cartdridge seem to work best and last the longest. Youll also burn through membranes alot faster, i have to change his every couple years.
Im sure theres a better way, i just have yet to find it. The minerals in well water seem to reak havok on rodi filters. On the other hand his freshwater tanks love it, lol.
I have found that running a high capacity DI resin cartidge followed by a cation DI cartdridge seem to work best and last the longest. Youll also burn through membranes alot faster, i have to change his every couple years.
Im sure theres a better way, i just have yet to find it. The minerals in well water seem to reak havok on rodi filters. On the other hand his freshwater tanks love it, lol.
Do you know how good or bad your water is? Do you happen to know the TDS? Some well water close to the foothills is excellent and it gets a little less good the further that you get away. I would want to know how bad your water is before I recommend one.
The most important piece is the RO Membrane. You can upgrade to a DOW Filmtec 99% rejection rate membrane that is sometimes good enough to use without DI - this is about $100 more, or so, but worth it. Here in Longmont, our TDS out of the tap is in the 30s and half of it is salt... so 99% rejection puts me at 0, 1 or 2 TDS without any DI. Again, this will depend on how bad or good your well water is.
The most important piece is the RO Membrane. You can upgrade to a DOW Filmtec 99% rejection rate membrane that is sometimes good enough to use without DI - this is about $100 more, or so, but worth it. Here in Longmont, our TDS out of the tap is in the 30s and half of it is salt... so 99% rejection puts me at 0, 1 or 2 TDS without any DI. Again, this will depend on how bad or good your well water is.
That is the only reading you need to determine the kind of membrane you will need.
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The BRS 75 gpd would work fine with that. That should get the TDS down to about 1 ppm before it hits the DI stage, so your resin should last long enough to only need a single DI stage. I would get this
https://www.bulkreefsupply.com/5-stage-premium-plus-ro-di-system-bulk-reef-supply.html
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https://www.bulkreefsupply.com/5-stage-premium-plus-ro-di-system-bulk-reef-supply.html
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