In order to fill the water tanks, I needed to install a water hookup. It’s basically just a box where you connect a hose to fill the tank. The one I got gives me the option to fill from a pressurized hose, or to gravity fill through a wide opening. It also has an air vent that releases displaced air in the tanks so they don’t explode from water pressure. So, that’s three hookups in one box. The box needs to be mounted to the exterior of the bus for easy access, so I picked a spot to cut, measured out a hole, and got to work.

While I was at it, I cut a hole for the exterior shower (an extra luxury) and the hot water heater. The hot water heater install ended up being pretty ugly because the install got rushed. The temperature started dropping as I was working on it, and I was freezing my hands off, so I just wanted to get it in and sealed. After managing to get it into the hole, I just slathered it with sealant, including parts that didn’t really need sealant. I regret how it came out. It’s a highlight of the trials and issues you deal with when trying to adapt RV equipment to a school bus. The rub rails were especially troublesome and severely complicated the cutting of the hole for the hot water heater. I wish I had more time to work on it, but it is what it is. All told, it could have been worse.