water holding tank

[garp55]

I am considering putting in a shower and toilet in a 5" x 8' trailer. I saw the one George Teagues built that has a pop up roof that allows for standing. I did the drawing and although it will be tight, I believe it can be done. My question is, do I need a holding tank to use to fill up and connect the water supply or could I hook directly to the campground water faucet using a water pressure regulator. I do not plan to install a water heater as I saw several portable type water heaters you connect to the cold line and plug the heater into the AC. Any advice on this water problem would be appreciated and thanks for your past answers to my posts. Gary

[Mike_La]

All you need is a water connection to campground water spigot. If you use PEX water lines in your build, no regulator is needed.

[garp55]

I appreciate the quick response, I assume that if I were to use the camper in the wilds, then I would need some type of water container on board. thanks again Gary.