Storing RO Water

[axepilot]

I'm planning on storing about 5 gallons of water from my RO/DI unit to use as a topoff between water changes. Can I store it in a sealed container (empty salt container)? Or does it need to be open and aerated?

 

[sapgranth25]

storing in a dark sealed container is fine but if you had a pump moving it around to aerate the ro water that would give you the perfect water to add your salt to.
But as it will be used for top offs lets say 3ltrs a day etc that will be fine i used to store a 5gallon SEALED BARROW of ro water for around 3weeks before i got my ro unit & that did not give my fish corals any problems so you have no worrys.......