I'm looking for low cost RI/DI and Saltwater storage options. I understand Brute trash cans are the way to go. Can these be successfully fitted w/ bulkheads for water inlet and exit? I'd like to plumb the RO/DI directly into one and have a spigot as well to tap water for my other tank (not on the auto top off). Anyone have experience doing this? I am considering the 20 gal. version.