If the extension tubes are leaking from the connection on either the end that connects to the patio cleaner or the end that connects to the spray gun, please check to see that there is no damage or debris that may have got stuck
A replacement extension tube can be purchased from our website
If the extension tubes are leaking from the middle connection or from the seams this can be caused by a crack in the tubes.
A replacement extension tube can be supplied to you free of charge if your machine is in the warranty period, if your machine is out of the warranty period the extension tube can be purchased on our website