Oh shoot...does RO remove chlorine?!?

dpeter51

Member
Man, I may have really goofed. I have an RO unit for drinking water but I don't think it distills it. It has the three vertical cylinders, plus two more sideways on top, and a big tank that I assume is for storage of the RO water until it is used.
Briefly, here's my situation: I brought home about 60 lbs of used live rock yeterday from a tank that had been set up for ten years. I didn't have any extra RO/DI water from the LFS, and the water I had made up was a little too salty because I made a stupid error (it was my first time mixing it up). The LFS was closed by this time, so I thought "hey, not a big deal, I'll just use my RO tap water to dilute the saltwater a little." I totally didn't think about the fact that the chlorine might still be in it....
So the live rock has been sitting in a big rubbermaid tub that is probably about 13 gallons RO/DI water from the LFS and 3 gallons of RO from my tap. Specific gravity is about 1.024.
Does anyone know if the average home RO system gets rid of chlorine? I hope I didn't just kill all this rock. I'm noticing a slight smell but I expect that is normal, because I actually got it from a guy who got it from another guy....so the transportation and getting moved around probably stresses the critters. I got a great deal, $3/lb for really neat looking stuff, but that's still a lot of money.
 

dpeter51

Member
Never mind, LFS just opened and answered my question. He told me the carbon filtration in RO systems does remove the chlorine.
 

scopus tang

Active Member
I believe you should be fine - I have a two cylinder system, and its supposed to remove chlorine, I would think that a two stage one would also. But I'm no expert, so if someone else knows better speak up.
 
N

nereef

Guest
RO systems always have a carbon stage between the tap and the RO membrane. the carbon removes Cl. if the carbon stage wasn't there, the Cl would eat through the RO membrane pretty quickly.
 
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