I like the machines at Ft. Wilderness!! Especially the dryers. The wash is $2.00 per load. I bring liquid detergent with me. You could avoid the disolving part on your powder by starting the washer, putting in the powder, and letting it fill partway, then adding your clothes.
For the dryers, it takes me about $1.25 to dry a load. (But it is just one, maybe two days clothes for one person for me.) (I wash every night or every other night while in the shower) The thing I like about Ft. Wilderness dryers is you can add 25 cents at a time.
At the All-Stars, the dryers are $2.00 just to turn them on. So if $2.00 doesn't dry your stuff all the way, you have to add a full $2.00 again even for a few minutes.
Carol