Cliff,
I dont have either!
All I have in the van is a tank filled with purified water (which I will explain later), hose & reel, pump & varistream and my poles.
My tap water reads 026ppm - 030ppm so it deosn't take much to purify it.
I have a 1000L tank in the garden & thats where I filter the water using a 5L di vessel or a 100gpd ro system. Which ever I can be bothered plugging in I will use.
So then I just pump the water to the van.
Hope this helps?
Any more questions just drop me a note,
Cheers
Matthew