Chloramine removal

cpschult · Aug 23, 2023

My city is switching to a water source treated with Chloramines. Does anyone have a recommendation for an addon to my rodi to assist in its removal?
Thanks!

PotatoPig · Aug 23, 2023

cpschult said:
My city is switching to a water source treated with Chloramines. Does anyone have a recommendation for an addon to my rodi to assist in its removal?
Thanks!

Basically runs down your carbon faster. I’m not sure what canisters you’re using but the BRS Carbon blocks removes the chloramines from my town water.

CoralB · Aug 23, 2023

Cloramine blasters from Aquafx took care of it for me . I run two in line

Aquaboys · Sep 15, 2023

Agreed . A good catalytic carbon is what your in need of!! You can check out our Aquafx Chloramine blaster addon.. Make sure to run 2 in series!

EeyoreIsMySpiritAnimal · Sep 15, 2023

Aquaboys said:
Agreed . A good catalytic carbon is what your in need of!! You can check out our Aquafx Chloramine blaster addon.. Make sure to run 2 in series!

Or 3, depending on the level of chloramine in the water.

Opus · Sep 16, 2023

A couple of good 1 or .5 micron carbon blocks should do the trick. I've had mine setup that way for many years. Our supplier uses chloramines and hits it with a huge dose of chlorine around March each year to in their words "clean the pipes". If you are still worried, put a few drops of Prime in the product water.

EeyoreIsMySpiritAnimal · Sep 16, 2023

Opus said:
If you are still worried, put a few drops of Prime in the product water.

But you don't want the membrane exposed to chlorine in the first place as this will ruin it.

Opus · Sep 16, 2023

EeyoreIsMySpiritAnimal said:
But you don't want the membrane exposed to chlorine in the first place as this will ruin it.

I was talking about chloramines, not chlorine.

Buckeye Hydro · Sep 16, 2023

How many prefilter housings does your system have?

Prefilter = any filter that touches the water before it reaches the membrane.

EeyoreIsMySpiritAnimal · Sep 16, 2023

Opus said:
I was talking about chloramines, not chlorine.

Um... what do you think chloramine is? (Hint - it's chlorine plus ammonia)

Opus · Sep 16, 2023

EeyoreIsMySpiritAnimal said:
Um... what do you think chloramine is? (Hint - it's chlorine plus ammonia)

Yes, but in that form it isn't nearly as deadly on the membrane. As Randy said in the thread a few days back, he showed small amounts in his product water and didn't hurt his membrane.

Buckeye Hydro · Sep 17, 2023

Opus said:
Yes, but in that form it isn't nearly as deadly on the membrane. As Randy said in the thread a few days back, he showed small amounts in his product water and didn't hurt his membrane.

Membrane tolerance to chloramine is something like 300,000 ppm*hrs. Tolerance to free chlorine is a small fraction of that. One thing to remember is that where there is chloramine, there is some amount of free chlorine.