Not sure this is the right category, but I have a a couple 5 gallon water jugs one for rodi and one for saltwater. They're the typical squarish water jugs a lot of lfs's carry. The one I only use for rodi is just like new, but the one I use for saltwater has a brownish film on the bottom. Anyone have a clue what it is or what may have caused it and what I should do to get rid of it?
I use rodi water and IO salt...
TIA
I use rodi water and IO salt...
TIA