I just purchased mine about a month ago. It DID come with the sprayer hose. I think I see what you folks are talking about, now. Mine fills up to a certain point, which is enough to "do the job", but no further. I did like the dual pedals for dumping the tank. I could fill the bowl to the point of overflowing, then dump it. I felt this method helped clean the tank and pipes better. Now I have to hold the single pedal all the way down and just let the water run in. I don't see any way of adjusting the pedals on mine.
2003 GMC 2500HD 4X4 D/A Ext. Cab
Propane Powered Honda EU2000i
Lots of Hot Sauce!
Air # 283