We're looking at building an outdoor hot tub, minus the 'hot' probably..... My question is what sort of pump do they run on? Do they pump the water round similar to a swimming pool but faster obviously or is it air thats pumped into the water.
I've got a builder who can build it and a plumber who can plumb it in, but I need to buy the parts and give the plumber some kind of diagram.
This does seem like a stupid question but I can't find the answer on the net.................and please no massive farting jokes.....






