Bungy

Moving up to 16" would require new rims, probably a little drastic for the situation

They’re hydraulic on the Solitudes.

They don’t appear to be of the locking variety, if they were they’d look something like these: General PDP Template

Yes they should be secured to the floor with wood screws through the bases.

Pretty sure it’s fiberglass, at least mine is.

How do you know it’s “dangerously close to being full”? If you’re relying on the tank level indicator lights, they’re notoriously...

The two front jacks are connected together independant of the other four so yes, they certainly could be at a different height.

nobody (that I know of) uses hardwood floors in an RV, they're all hardwood "look alike" lino.

Into the water heater?

Ya but you can control multiple devices and program it for multiple activities, so you only need one remote to control everything. I...

I've always used the Logitech ones, currently have 3.

Universal remotes are available at Best Buy, work with any tv.

X3, the levellers are not the problem, they draw no load. My trailer has been sitting on the 6 point hydraulic legs for 7 months now...

Yup, totally normal.

The detector on the ceiling is NOT co, they're mounted on the wall close to the floor.