mixing station help

New to hobby and trying to set up a mixing station. First pass will be a 2-brute-trashcan connected similarly to all the other ones I see on here via PVC tubing & pump in the middle. But --- since it's 2 trashcans, I can't easily see how full either can is without popping off the lid and...

I have been searching high and low and can’t find a reasonable source that doesn’t charge INSANE money for the shipping! By insane I mean more than double and sometimes 5x the cost of the tanks. I am looking for some flat-bottom, 40-gallon NSF poly tanks to assemble my mixing station in a...