RO Membrane didn’t help TDS reading high

Melissa31595

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We had some tds readings a little high so we changed out the RO membrane and now the TDS is reading even higher. We flushed the system for 12+ hrs and it still reads at a 5-6. What did we do wrong?

IMG_2558.jpeg IMG_2561.jpeg
 

Reefer Matt

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we have 2 di resin cartridges. They are the 2 black tubes on top of the system
Ok. I’d check if they are depleted. Are they mixed beds, or one cation and anion?
 

Lbrdsoxfan

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we have 2 di resin cartridges. They are the 2 black tubes on top of the system
I'm betting your resin is shot, change it out and try again. Most people tend to burn through it quicker than they realize.

I burn through mixed bed resin easily 2-3 times a year and I use a larger 10" canister. I also make 25 - 40 gallons of water a month with a average TDS of 350. I prefer to use the color changing resin that tells you when it's gone.
 

sfin52

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After looking closer @ the photo, the 5 TDS is after the resin. Get some new resin and try again. I'd suggest mixed bed and color changing, so it's easier to monitor and to deal with frankly.
Agree
 

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