Mixed bed or individual DI resins

[fishnerd1]

I live on a well and can really chew up DI resin fast. I regenerated some last weekend but left it separate, anion/cation. I understand that high CO2 common in well water is the most common cause for rapid DI exhaustion since the TDS measured out of my RO is only 2 so the resin should in theory last much longer than it currently does.

I have a double DI cartridge set-up and am considering running the resins separately so it is easy to recharge the anion resin when exhausted by the CO2. Anyone every run the resins separately, pros, cons. I know tracking the cation resin life will require monitoring the TDS meter as this does not color change like the anionic resin. IMO easier to set a replacement schedule on cation resin than constantly regenerate the mixed bed when mainly the anion is consumed.

 

[Buckeye Hydro]

Using separate bed resin is fine. Suggest that you follow the cation and anion cartridges with a mixed bed resin cart.

Realize that using equal volumes of anion and cation resin doesn't necessary mean the two carts have an equal capacity. Ask your vendor - if they can't answer the question, suggest you move on to a different vendor.

You may also want to think about degassing your RO water to minimize dissolved CO2.

Russ

 

[kenneth wolfe]

I had a well once and a few tanks and it was better to no filter than filter, You might be able to use the co2 rich well water to an advantage. Ponder on it I will..

 

[kenneth wolfe]

get your well water tested..

 

[Buckeye Hydro]

If you tell us your pH and KH we can calculate your co2

Russ