Water tank to fit in LPG tank storage spot?

[WYWander]

Hello all,

Google tells me there are some people DIY'ing this but do you know of any already-made water storage tanks that will fit in and be held in place by a single or dual LPG tank carrier? I'd like one that's square, to maximize the volume. Doesn't need to be high pressure...

Thanks!

 

[Grover the Roamin Ram]

I love this idea.

I know you are looking for a square set up but now I wonder could it be possible to refit an out of date LPG Tank into a fresh water tank? That is 4Gal/17L give or take of onboard water and if it could be pressurized it would make for a very convenient water source assuming you could clean it out.