In the process of replacing the liner. The walls had a couple rough spots that had to be sanded and repainted. They are not thin, but do have SOME pitting. Last time, we used foam on the walls, but I've found two things: 1. Foam makes the liner more prone to puncture (soft padding) as opposed to no padding and 2. In case of leak, foam traps water against the wall thereby encouraging corrosion. So, no padding for me this go round. Here in bama, the water temp isn't a problem anyway. I'm going to pop-rivet patch two spots (around the return to reinforce since there's a good bit of rust there and in an old spot where I shot a piece of metal thru side with lawn mower).
Anyone ever used roofing felt for floor and/or walls? I've got some laying around and the more I think about it, the better this idea sounds to me. It will provide a flat, yet not-soft barrier to the walls and on the floor it will provide some protection from all the blooming rust that may be in the sand where we've had to sand walls and rails.
Thanks in advance for advice!