B
bgec
at the bottom of the cold there should be a pipe poking up from the bottom feeding the bottom cylinder. push the hose down there till it hits the bottom. take the other end of the hose as low as possible to somwhere you can drain it suck the water out. or you can maybe pump water back up it to get it going. also putting in a drain valve might be a good idea while its empty.
Thoourght thats what you ment great i will do that can i ask just one more? Do you think i could get away with a 10m hose or will i run out of puff ??