I currently keep two 32 gallon brute trash cans, one with RODI water and the other with mixed salter respectively. That currently lasts me a little over a month with water changes and auto top off. I used to continually run heaters and flow but now only run flow to mix the salt and pre-heat the water before a water change. I keep lids on them which cuts down on the evaporation.
I’m thinking about expanding my storage capacity to cut down on the need to make RODI and saltwater and was curious if there was any down side to keeping either around for longer periods of time (~3 months). Thoughts?