I use a bucket and sponge or brush to wash mine at home, but I use a hose to rinse it. Wonder how they might have done this in a parking lot??? And it sounds like they would have had much of the same runoff in the lot as they would have in a campsite. At any rate, I'm glad thay stopped the pressure washer in the Fort.
Although I bring my own GC, I do not want to see them limiting off site rentals. I would be more than happy if they would just police the use of approved carts in the Fort...speed, size, underage driving, etc. And if their rates were just a little more competitive, there would be no need to ban outside rentals.