I contacted the folks at Zodi, with hopes of them coming to the IRG and setting up a field unit for us. They wanted me to contact them right before the event and give them an aproximate head count... apparently, we didn't have enough heads, 'cause they never got back to me...
I ended up getting the Coleman unit at the last minute and it served our needs very well, although Steve E. and myself did get zapped with cold water because of low battery, but this thing was used a lot.
I knew ahead of time, that there was a faucet close by to where we had it set up, so I bought the additional hose pump.
Unfortunately, there wasn't enough water pressure at Pamplin Grove to get the hose pump to work, so I switched it to the siphon pump that comes with the unit. I placed the unit on a table and situated it right next to the shower stall. Three simple slices of a razor blade, allowed me to make a flap opening into the stall, so that the control knob was configured just like a normal shower stall on the wall of the stall. One more tiny slice with the razor blade gave me an access hole in the stall, to insert the shower hose.
It would have been nice, if the shower hose would have been a foot or two longer, but it was just long enough to hang the shower head from a holder fashioned out of a piece of brazing rod.
We strung up two simple tarps and a shower curtain adjacent to the stall opening, so that folks had a changing room.
Didn't have any complaints, just rave reviews... Especially from the folks who showered, right after recieving one of Joanie's massages.
I wish I would've thought to get a few pictures of it... Darn it.