The pot elevators are stupid expensive online but I found a place online that charged a normal price with low shipping. Last time I needed some they were sold out locally. I’ll see if I can find the link.
I just use a shop vac to suck up runoff. I have a couple of them. But the one I use for my runoff is a little handheld craftsman 3 gallon, or maybe it’s 2 gallon? It was $20 at lowes. YMMV on the price but it saved my sanity.
EDIT - craftsman 3 gallon.