My hose is 9.5m and, as I said, it siphons too slowly over that length to have enough oomph to clean as it siphons. It is made up of 2 hose lengths, one short, with a tap between the 2 so I have to turn the tap closed then fill the short hose at the siphon end then drop the siphon underwater, then turn the tap open. This starts it siphoning. Too long to suck!! :lol: