for the inside, I've just used regular cleaning stuff like I did in the stick n brick and usually it was what ever was on sale or what I had on hand.
windows..regular windex. But the outside of my fifthwheel was fiberglass and a product called Protectall was recommended to me. The roof
is entirely a different thing if you have a EPDM roof you have to make sure you don't use any cleaners that contain solvents. Make sure its
safe for an EPDM roof. If you use the wrong stuff it will cause bubbles on the roof and that means its separating. Do inspect your roof from
time to time for tears from low branches. Also, don't use oil based cleaners...like Murphys Oil Soap. Spic n Span is fine though, and so is cleanser
but ya want to think about runnoff as it runs off the side when ya use the cleanser.
Chemicals in the holding tank....I didn't use any. I lived in mine full time for 4 years and the tank would hold two to three weeks before I opened
the valve to dump it, then I just flushed it with the hose real good. Never had any smells come into the rv. If your parked for a long time you can
keep the grey tank open and let it drain but keep the black tank closed until its full as it will dry out and you don't want that. Although the sensors
are helpful, they are not always accurate, especially with age. Some of the ladies will do the ice cube thing where you put a bag of ice and some
dishsoap in there before you go down the road a bit and the road action is supposed to clean the sensors. I've never tried it so I don't know if it
really works.You'll get lots of opinions on the tank thing.
My rig has been in storage now for almost two years so a lot of this I've forgotten but the girls going to the bootcamp thing I'm sure will be fresh
with ideas.