We've always kept a full tank in storage, usually w/ a cap of that bleach they sell to sanitize water (= bleach!) Seems to work except for the last batch, so we'll try yo continue w/ this and keep a closer watch.
Edit -- went out to look at stuff and water is OK after two days
I will look at all those screws. On both sides above the tail lights, there is a wide gap between the lower bumper and the upper vertical rear fiberglass corner pieces that I put an ugly lot of caulk to close it, but I might try and get a pic and ask your advice on a better detail. Similarly, I have always wondered if all those exposed screws at bumper and going up the corners could be nicely taped over w/ something.
Edit -- screws are still white. I had caulked the horizontal bumper seam where the gap was wide.
About our roof AC. We did hit some tree limbs in the graveyard. I did not see anything but a missing grey tank vent cap. But after running all nite, at one point the AC started to blow only a little air (and it had been making a funny kind of rumbling noise on the rear side of the AC unit between the main blowing vent and the ceiling light just to the rear of the vent).
Later, at a roadside stop, the genset ran the AC just fine, and I think the rumble was gone.
A friend said that maybe something got sucked in? What might I check?
Edit -- no apparent tree hit to front of AC. Cranked genset and ran AC - all seems well. The noise between the big vent and 1st ceiling light to its rear is now what I think has always been a sound like wind passing thru duct. There is a ceiling AC vent just to the rear of the AC unit, between the light and main blowing vent that has always had little or no air coming out, and I wonder if there is some kink or something in this area (it is useless anyway, being inches from the main blowing vent which can be opened a crack to act as one of many distributed vents). Other vents are good, and Bath vent always works even if you open the main AC unit's blower so as to bypass all other ceiling vents
Ahh, what great technical writing practice we get as TL owners!