Swapping out a carbon filter for a second DI

[Waboss]

So I'm on well water now, and my DI resin depletes (changes colors, and TDS increases) much faster than when I was on public/utility/city water. So I was thinking of swapping out 1 of my carbon filters for a second DI and then do the "rotation game" with the DI cartridges to help maintain 0 TDS (I have a 5 stage, so 4 "filter cartridges" and 1 membrane). I'm sure folks have done something like this before and I figured I'd ask how it worked out and if there's any "gotchas" I should look out for.

Thanks in advance for any guidance on this.

 

[lapin]

Yep will help. Or just get an add on canister with meter from BRS. You need the resin holder cartridge part anyways

 

[sick1166]

Nope I'm on well water
first I have a 5 micron then thru membrane and turned carbon into di and than another di canister so far so good

 

[Waboss]

Yep will help. Or just get an add on canister with meter from BRS. You need the resin holder cartridge part anyways

Yeah, i was thinking about just adding on a canister too. But if the carbon is primarily there to remove chloramines that's added in for public water, then I figured I could just remove one of the carbon filters (since it has 2, a 5 micron and a 1 micron).

Thanks for replying!

 

[lapin]

Carbon can remove other toxins. Do you know whats in your well water?

 

[Waboss]

Carbon can remove other toxins. Do you know whats in your well water?

Nope, not at all. I know it was tested to be "safe for drinking", but that doesn't really tell me much. I plan to keep a 1 micron carbon filter in, just remove the 5 micron and replace it with the extra DI cartridge.

 

[topjimmy]

Might be a co2 issue. What is the tds of the incoming water and the effluent?

 

[mfinn]

I would not remove a carbon filter. As well as removing many contaminates, they also protect the ro membrane.
I started running through di resin really fast a while back.
I added a second di resin container and it really didn't make anything last any longer as the di resin depleted in the first container at the same speed.
Then I gave the 3 resin system ( anion, cation, and mixed bed containers) from BRS a shot and it seems to help.

 

[hart24601]

I wouldn't remove the carbon filter either to save money on buying another canister. Just add on to the setup, carbon removes a whole host of things that might be in the water and compared to the other costs in the hobby it's pretty minimal.