Alright- more research in. Guy at the home brew store says campden tablets, made of potassium or sodium metabisulfite, will clear chlorine and chloramine from water.
Tablets are for convenience, but powder is cheaper! .44g powder/10gal h2o to clean it up.
1lb bag @ ~$10 is about 10,318 gallons purified. Not too shabby.
Vitamin C online @ ~$20/kg is about 20,000 gallons purified. Both do the job for about the same cost.
If you are in a situation you have to use tap water with chloramine, hopefully this helps!
