using R/O water for WC?

[iloveoscars702]

That should work pretty good...

But again, I would only suggest this if you had R/O water readily available. I surely wouldn't pay LFS prices for it...

yeah i know. my house is hooked up to a RO system so its all good

 

[squint]

The carbon might take care of chlorine. It depends on how much capacity remains, whether it's "activated" carbon, and flow rate. If you have chloramine then all the above caveats apply but you have to deal with the resultant ammonia. In RO/DI systems, that's the job of the DI whose efficacy again depends on flow rate and remaining capacity. Ammonia is one of the things that will pass through a RO membrane but DI will take care of it.

If they do then when you add Prime to your tap water the chloramine will be broken into ammonia & chlorine... The chlorine will be neutralized and gas off... the ammonia will be converted into ammonium... the bacteria in the tank will oxidize the ammonium just like it does ammonia produced by the fish...

Prime (sodium hydroxymethanesulfonate) converts chloramine into chloride and ammonium.

Both sodium hydroxymethanesulfonate (Prime, Amquel, etc.) and sodium thiosulfate will convert hypochlorite to oxygen and chloride.

It is important to use a complex dechlorinator like Prime, Amequel, etc that not only gasses off chlorine but also converts ammonia to ammonium and not a simple dechlorinator that only gasses of chlorine.

Sodium thiosulfate also converts chloramine into chloride but doesn't convert ammonia into ammonium.

Neither converts chlorine into chlorine. Otherwise, adding Prime to chlorinated water would result in...chlorinated water and you'd have to let it sit overnight anyway. That clearly isn't the case since people use Prime the same time the do water changes, not the day after.