Sounds like you will have fun. I can talk about water as I think I have figured out a great way to not worry about it.
GuzzleH20 has the idea that you can convert to a setup in your Class A. A little ingenuity goes a long way. I did not buy theirs but created my own.
Think this way:
I want to fill my fresh water tank from “any” water source within 50 feet of the rig. Lake, 1” deep stream, pond, river, creek, etc…
Drop a “sump pump” into the source water to lift it to a bucket by your rig. Now you have to plumb in either a line to the onboard 12v pump or plumb a new pump into your fresh water lines. Then just drop the intake line in the bucket!
Proven concept in my rig!
Standard .5 micron filterAmazon.com
a.co
UV light (most expensive item)
A great and well-designed system! What is the pump's flow rate when you want water for your appliances, and is the UV unit rated for that flow rate? I am asking because the dosage depends on the flow rate.
Do you use a mesh / paper filter to protect your pump and the .5 micron filter? Makes sense if you draw from a pond or river.
Cheers,
Sebastian