Here comes the downpours again.

[RAMd®d]

I have a larger one I have never used past the first time. Too hard to move around and get through to the sink to empty.

Easy, just use it to suck up all the water and then use the 6gal to empty the BigGuy.

Now, suppose you had a 6-, 10-, and 40gal wet vac, and could only move 7gal at a time, but you need to cross the river with a chicken, a cat, and a crocodile, but...