to keep the RODI-90-10
So I am not sure what to do, I no longer have the need for the amount of RO-water I use to but I do need some RO-water. Right now I have a SpectraPure MAXCAP-RODI-90-10 the issue is I don't need 90gal a day I only use 3-4 gal a week and with a water change I am only needing 8gal extra every 2 weeks. The issue is I don't 100% trust the Fish stores around me as each time I have gotten RO water from them I was able to get a 1-5TDS on the TDS meter. so I was thinking can I get store RO water and just running it in a bucket with a duel DI resin stage? Also how long will DI resin last if it was in the original package and store in 70ish temp as the ones I have are 4-5 years old.
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I would keep the system for sure. As for storing water a 55g food grade brute trash can works great. Fill it up and let it sit till needed, as long as nothing gets into it your good to go. I fill mine about once a month or so without any I'll effects and many people store water this way for extended periods of time. While the brute can is pretty standard some have opted for other containers as well. It's also better for your di membrane to run 50g in one shot vs 3-4g at time. As for the older di resin I would think as long as it's stored properly it should be fine. If uncertain you can always install, run a proper break in period, then test tds to know for sure. Hth
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Have you considered a smaller ro membrane ?
My spectra pure rodi came with a 100 gallon per day membrane... when it was time to change that membrane... I purchased a 50 gallon per day membrane.. It's a bit slow though for doing good water changes.. so I may opt to get a 75 gpd membrane next year Sent from my SM-S907VL using Tapatalk |
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I'm not 100 percent sure... but i do believe most all newer ro membranes are universal dimension wise Sent from my SM-S907VL using Tapatalk |
If you change the gpd of the membrane, you also should change the flow restrictor to match the new membrane.
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here is a picture of the one I made. All parts are available at a hardware store (home depot/lowes). It's the brass thing.
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