Around here, Farm supply stores have tubs/troughs used to water livestock in many sizes. Tubs have a high enough sidewall to drape a shower curtain inside. A friend made his shower with a hula hoop attached to the ceiling of his box truck to hang the curtain, and a 2 1/2 foot wide, 3 foot long trough to catch the water. adding a drain hole with a hose attachment to the lower side of the tub made empty easy. When not in use, he stored his water jugs, shower head and hose, and 12v pump in the tub and took the curtain down , folded it, and put it in the tub also. Quite a novel setup.<br><br>Bob