Chloramine - check your water source!

[Myka]

For those suggesting Prime, it is kinda difficult to get Prime into the water before the water goes through the RO/DI unit. After reading the article that fencer posted it sounds like monochloramine (the most common of three different chloramines) goes through the RO membrane not damaging it, but still getting to the tank. In which case adding Prime to the RO/DI product water could be a decent alternative.

Other references suggest that with a typical RO/DI unit the carbon block will convert the chloramine to chlorine and ammonia. The carbon will then convert that chlorine to chloride, which the RO will remove. The ammonia will make it through the RO where the DI will remove it. This would explain why I seem to burn through DI resin faster than what the TDS going to it suggest. There seems to be rather a bit of confusion on the subject! Several references suggest that catalytic carbon is required to break the bond of ammonia and chlorine. Hmmm...

I'm going to order a test kit. I wanted a chlorine kit anyway.

Originally Posted by fencer

http://reefkeeping.com/issues/2003-11/rhf/feature/

This is a really old article, but lots of very interesting information! Thanks for posting! I'm going to see if I can find something more recent.