The outside pumps stop at $74. I can see spending $50 or $100 minimum for free dump, but 50 gallons is insane. I came in with a nearly empty tank and realized that was really not a fair deal just to dump and didn't want to fill up completely today. I think my tank is only 50 gallons, so you really need a big fuel tank in order to dump without paying. I would recommend stopping in Indio to dump. I can make it a few more days, so I plan to do this later.

I did not see water at the dump location! Looks like it is just a dump. In n Out Burger and Panda Express restaurants close.

Had to jump through some hoops to use it, but once they came out and unlocked it, all went smoothly. Not the easiest place to get in and out of. Lots of traffic in there too. But you can fuel up, dump, refill propane, and even grab a snack all in one place. Not bad at all, but the price is a bit steep.