I might do a little write-up. My friend wants one after using it this past weekend. Until then, the head is a kitchen sink sprayer(was $5 at Loews) basically, I found the head, then found the hose, then I spent an hour in the fittings isles (both water and air)The hardest part to find was a piece to seal the head to the hose(it didn't come with anything) I found a piece that mates 2 hoses together, cut off one side and pressed it through the head threaded end all the way into the hose itself. Kind of hard to picture. Like I said, I will make another soon and detail it for you.
I used it for 1 shower and every meal for 2 days clean up, still had a gallon at least left. Defiantly shined for camp chores. 10 psi seams to be just fine.