Does to much di resin do harm?

[Randy Holmes-Farley Verified Community Expert]

Also does it not make sense that DI resin in my first canister would NOT be used because of it going into my last canister thereby using that DI resin?

If both resins are mixed beds (double check), it is not possible for the second one in line to deplete before the first one in line, unless water is bypassing the resin in the first one.

 

[Randy Holmes-Farley Verified Community Expert]

I'm trying to follow what your saying. I have not heard the terms cation and anion resin before. As far as I know my resin is a mixed bed. The order of my DI canisters is just two canisters one after the other of mixed bed. Does this make any sense to you?

If you do not know what these other types are, perhaps you ordered one by mistake. Or maybe the company shipped the wrong one. I've gotten resins of a type different than I ordered.

 

[Gordonm]

If you do not know what these other types are, perhaps you ordered one by mistake. Or maybe the company shipped the wrong one. I've gotten resins of a type different than I ordered.

There is only the one type of resin that the company sells on there web site. As far as water bypassing the first canister who knows. I'm trying to think back years if it's always been this way and I doubt it. I've got today off so I'll go and try and figure this out.

 

[Randy Holmes-Farley Verified Community Expert]

There is only the one type of resin that the company sells on there web site. As far as water bypassing the first canister who knows. I'm trying to think back years if it's always been this way and I doubt it. I've got today off so I'll go and try and figure this out.

What company resin?

 

[ca1ore]

Last year I switched to the BRS triple saver …. cation to anion to mixed bed. Has significantly reduced my resin $$. Important that resin is packed tightly (use the sponge). I failed to use the sponge on my cation stage and got channeling which killed my mixed bed. Done properly, the cation and mixed bed will last me for many thousands of gallons. Anion probably lasts 500 gallons, maybe a bit more.

 

[Gordonm]

What company resin?

Reef supplies up here in Canada sells it

 

[Randy Holmes-Farley Verified Community Expert]

Last year I switched to the BRS triple saver …. cation to anion to mixed bed. Has significantly reduced my resin $$. Important that resin is packed tightly (use the sponge). I failed to use the sponge on my cation stage and got channeling which killed my mixed bed. Done properly, the cation and mixed bed will last me for many thousands of gallons. Anion probably lasts 500 gallons, maybe a bit more.

I'm not convinced the advantage is that large, but certainly folks with a lot of CO2 in the water may benefit from a separate anion-binding resin that can be replaced independently of the cation-binding resin that will be slower to deplete.

 

[ca1ore]

I'm not convinced the advantage is that large, but certainly folks with a lot of CO2 in the water may benefit from a separate anion-binding resin that can be replaced independently of the cation-binding resin that will be slower to deplete.

I'm on a well and have neither the space nor the inclination to install a degassing tub. In 2018, I replaced the blue mixed bed cartridges slightly less than monthly. Over the past 12 months I have replaced the cation and purple mixed bed once each, and the anion four times. So that's six versus 10 …. certainly approaching significance . I appreciate that not everybody will experience same, particularly if not on a well.