Installing the Fresh Water Tank Fill Spout in a Vintage Trailer Camper

Get your vintage trailer move in ready! Here's how to install a fill spout in your vintage trailer.

The fresh water tank (the only tank in the COMET - no grey or black water tanks) lives underneath the rear couch/bed.

Originally it was under the dinette bench on the port side, but that meant that there was about 15 feet of tubing wrapping around the entire trailer to get from the tank to the faucet on the other side.

We moved it to underneath the rear bench to be closer to the faucet. The fresh water tank is 15 gallons and I refill it about every 3-4 days. You don't really use a lot of water when you have to pump it by hand. And the hot water is just one of those black bag camp showers that I hang up outside.

Here's how we installed the new fresh water tank.

Here's where the new fresh water fill spout goes. Thanks Timbucktu RV Supply in Worcester for all the parts needed for the water tank installation!
Here's where the new fresh water fill spout goes. Thanks Timbucktu RV Supply in Worcester for all the parts needed for the water tank installation!
Close up of the fill. We caulked around the edges, and screwed it into the wall. The small spot to the left of the spout is the vent, which allows the tank to empty correctly.
Close up of the fill. We caulked around the edges, and screwed it into the wall. The small spot to the left of the spout is the vent, which allows the tank to empty correctly.
Here's what it looks like from the inside. We toe-nailed in a piece of plywood so that we would have something more than just aluminum to screw it into from the outside.
Here's what it looks like from the inside. We toe-nailed in a piece of plywood so that we would have something more than just aluminum to screw it into from the outside.
Here are the lines attached, using hose clamps. The blue and white striped line (the larger one) is the water fill line, it goes from the fill spout to the tank. The clear, smaller line is the vent line for air to escape as the water drains. It goes from the tank to the spout, then outside via that vent.
Here are the lines attached, using hose clamps. The blue and white striped line (the larger one) is the water fill line, it goes from the fill spout to the tank. The clear, smaller line is the vent line for air to escape as the water drains. It goes from the tank to the spout, then outside via that vent.
Some context.
Some context.
The tank! It came with no pre-drilled holes, so we could decide where to put them ourselves. Using a hole saw bit on the drill, we cut out the correct holes for the hose attachments. There were 3 holes in the tank total: one for water to come in from the spout, one for air to escape when it's draining, and one for water to travel from the tank to the faucet via another line, which is down at the bottom.
The tank! It came with no pre-drilled holes, so we could decide where to put them ourselves. Using a hole saw bit on the drill, we cut out the correct holes for the hose attachments. There were 3 holes in the tank total: one for water to come in from the spout, one for air to escape when it's draining, and one for water to travel from the tank to the faucet via another line, which is down at the bottom.
Then we cut the new panel for that wall (the old panel was all water damaged under the window and at the floor) and tacked it in.
Then we cut the new panel for that wall (the old panel was all water damaged under the window and at the floor) and tacked it in.
We then put in the framing and front of the rear bench (not tank yet) because we needed to see how we would run the line from the tank to the faucet and make sure everything would fit.
We then put in the framing and front of the rear bench (not tank yet) because we needed to see how we would run the line from the tank to the faucet and make sure everything would fit.

Now, we actually installed the kitchen before attaching the water tank and hooking everything up, so that's where I'll stop for now.

Basically, the tank got put into it's spot under the bench, it fit very snugly. We hooked up the fill line to the appropriate fitting that we had installed in the side of the tank, and the air vent line to the appropriate fitting.

We put the fitting (barbed) into the bottom for the faucet line as well, but didn't hook it up until the kitchen was finished. So we'll look at the kitchen then get back to finishing up the water tank.