Nothing kinky
You need a hose. If you are one of those people who buys those useless hoses that kink as soon as you even contemplate washing the car, you deserve the pain and anguish it delivers. On a return trip back from Sydney we had to wash the old Moffat race car transporter with one of those anaemic things. Never again! Get yourself a good quality medium strength hose. Not too tough so it's inflexible, not so weak that it's, for lack of a better word, kinky.
After our own multiple tests of the higher end hoses, the best hose we have used is the top of the line Nylex Never Kink Pro. Do yourself a favour and get one of these!