Designer 35RLTS and Jayco Talk...Thanks Frank!!

Tried beach balls and they worked pretty good for the flapping ... but lost 2 of them when they blew away in some really heavy wind. Didn't do anything for preventing the pooling of water in the middle though.
The PVC I can slide into place from one end, and remove from one end. I plan on adding a tether strap from one end to the other, just in case they come apart while I'm trying to pull them out. (hasn't happened ... YET !)

CRUZ