Re: Slide gasket
Reply #5 –
The sweep gasket sweeps the top of the slide going in and out to keep water and everything else off. I replace mine several years ago. The gasket is black. Mine was covered with white stuff and crumbling. New ones come from FOT, maybe from MOT as well. It fits in a channel above the slide. Get enough to go past the slide at each end about 6".
The awning above the slide does best at shedding rain if it is extended all the way. Wind can lift one corner or the other so if it going to be windy I secure the outer ends of the arms with a small sized rope to an eye mounted a couple feet from each end of the slide just above the belt line trim strip. There is metal behind there so it is secure. Water drains.
Verify that your bladder is fully inflated. A credit card or similar should not get between the slide and the seal. An inflated seal should have 12-15 psi in it. You can add a pressure gauge to see what the bladder pressure actually is. If your bladder manifold is misbehaving the bladder can lose pressure over time. You can add a manual valve between the manifold and the pressure gauge and the bladder to isolate the bladder and with it inflated monitor pressure over time to verify the bladder is holding air.
Make sure the sealing surface on your slide is clean and free from anything that would interfere with a good seal. Pine needles seem to be a common culprit.