I think this is a better system overall:

eplaya.burningman.com/viewtopic.php

The only reports of issues I have found include pump breakage (using a cheapo wally-world pump instead of a marine grade pump designed to handle dirty nasty water), cleanup and transport of the kiddie pool and plywood, and trouble scaling the pump to the right size to get even flow. I believe based on the specs that the eplaya thread is talking about a Rule 1500 GPH pump as it is the only one I can find that fits the spec.

I am working on such a system for this year and will be using a wind sensor from automatic watering systems to ensure that the pump turns off in high wind and a float switch so it turns off when empty so as not to kill the pump running it dry. The idea is to make it as automatic as possible in case people from other camps use it to dump their water as this is what happened with my evap pond in past years. I am also using an inflatable pool to make it smaller to pack in and out and am contemplating hinging the top disk and then covering with black plastic so the top will be easily packable and burnable in one of the burn platforms and the plastic and pool can be easily broken down after the event.

I will be using a two pump system, one pump to empty the shower pan into the pool and the other pump to power the fountain with the transport pump (being used for only brief periods of time) as a backup for the fountain pump in case something goes wrong with the primary pump.

On a side note we are considering joining a theme camp this year but have not decided yet. Are Karma Chickens going this year?