Chemical usage

Or just buy some and be done with it

Dang how much was the deposit on those? I know back then it was quite a bit cheaper. I am paying $140 per 53 gallon drum as a deposit. I always just exchange it when I get a new one because it is a ridiculous price for an empty drum. I do wonder though if those drums are double walled insulated? Seems like it would keep sh fresher in high temps than the partially transparent tank I have on the truck from Powerwash Store.