I have a 30 gallon rubbermaid container. I have had water in it for a week it has ammonia in it it had a heater and power head. Could it be pulling ammonia out of the air. My roomies cats used to pee back in the laundry room its a big room. I dont really have a problem if I use the water quickly. I would like to be able to store my water. I have cleaned the power head in vinegar before I put it in my container. Basically has is this ammonia getting in my countainer. I tested the water from the rodi its fine. Has happened with lots of different salts.