[cypher]

I guess you could freeze the substrate from the cage if you want to reuse it, I don’t think freezing new is necessary using kaytee c & C.
I can’t remember where I got my safe4 of hand, I have the 5L concentrate & just google who’s cheapest when I need more (that’s not all for the hams btw!) but lots of places sell the small bottles unless it’s one of those things still out of stock so I would just give it a google.
I don’t see how bottled water would have any bearing on the bug problem, if you’re tap water is ok then I would use that anyway as some bottled water has a high mineral content, otherwise filtered water is better.