HD has a $20 wet/dry vac head that fits on a Homer bucket (not included ) or maybe other 5 gal buckets that may fit the bill for mash tun cleaning. I do 10 gal batches and dragging my rectangular cooler filled with 30+ lbs of wet grain out to the compost pile is a real PIA. This may fit the bill to make life a little easier.
usual disclaimer - I have no interest in HD
usual disclaimer - I have no interest in HD