Onboard pressurized water?

Anyone try one of these dudes out?

http://www.roadshower.com/

 

This guy had one and sold it. Maybe ask him?
I think mademan had one also.
https://www.tacomaworld.com/threads/for-sale-used-road-shower-2.482611/

 

I've been looking at these two items from Front Runner as options:

http://www.pelfreybilt.com/product/front-runner-45l-water-tank-with-mounting-system/\
Almost 12 gallons is alot of water! And it has a hose connection. But don't know if it can be pressurized much.

https://www.frontrunneroutfitters.com/en/us/front-runner-rack-mount-shower-arm.html
I used these solar showers before and they work good. This hanger is a plus.

 

I made one out of ABS for ~50$, works great!

 

There's a guy out there that makes scepter lids to work with scepter cans for pressurizing water in the can itself..

Start an air pump, hook up a hose and you have OBW.

I'm looking to make my own and doing a writeup on them.