I used to use a Henry, then when I needed a new one I got a Karcher wet & dry vac as it was on offer somewhere. Brilliant bit of kit, every bit as good as the Henry was IMHO. The advantage for me, probably not so much for a plasterer, was it can be used as a dust extractor. You plug the sander (OK maybe some plasterers :RpS_lol: ) into a socket on the vac. When you pull the trigger on the sander the vac starts automatically.
It'll be handy next week when
@Nisus is doing his two hours a day with out of date multi and dirty water. I'll be able to vac up all the water (it's like watching Shamu from poolside!) he splashes around. Then when I knock the high spots off of the walls with the sander I won't get any dust in his ice cream. :RpS_sneaky: