Got the water system installed over the last few weeks. Now have cold water running to the sink and to an exterior shower connection.
Went with a 15 gallon tank that came from Plastic-Mart
. The tank came with two 1/2 inch, for vent and suction, plus one 1-1/4 inch, for fill, bungs. You can also get custom fittings.
Did some calculations and realized that the tank would only hold 13-1/2 gallons if the vent line was lower than the top of the tank. Decided to mount both the vent and fill above the top of the tank so that we could get the maximum amount of water in it.
Got a piece of 3/16 inch steel to set the tank on and act as a bash plate. Had my nephew weld a couple of rails on the sides to keep the tank in place. Then painted in with a couple of coats of Rust-Oleum.
Used metal channel framing brackets attached to the frame as the support structure for the bash plate. The the use of the bolts and nuts at the brackets allows the entire tank to be removed by undoing five bolts.
There is metal channel framing on top of the tank and threaded rod was used to clamp the tank in place. There is a layer butyl rubber between the tank and the bash plate and also between the upper channel and the tank. This should prevent any abrasion if the tank moves around.
The tank and plate tucks up between the differential and the cross brace. The carbon canister was relocated from the cross brace to the frame rail to get the tank to fit in this location.
The hose fill for the tank is mounted in the top of the bumper above the top of the tank. It was located here so that we did not have to drill another hole in the side of the van.
There is also a secondary fill system that allows us to pump water out of a jug and into the tank. This system also allows us to run the shower from a bucket that was warmed by the fire.
The shower connection is attached to the bottom of the rear bumper. We used a quick connect so that the shower hose and head can be plugged in when needed.
Added a threaded connection to the shower supply pipe so the bumper could be easily removed.
When not in use a 7/8 inch walking cane tip from the drug store is placed over the quick connect. The cane tip keeps dirt and debris out of the quick connect.
The shower head cane from Amazon and has an on off switch in the handle.
Got a couple of shower curtains from the thrift store. These allow us to use the rear barn doors as a shower stall. Currently the curtains are held up by clamps. Will change to snaps in the near future.
Inside the van the pump, accumulator, piping and valves are tucked behind the drivers side dinette seat. My brother in law had some left over PEX and the tools that he loaned me. It took a lot more fitting than I expected. Right now both the red and blue PEX are piped to the sink. Left a red plugged tee in case we decide we needed hot water at the sink.
This is a diagram of the system as installed. It went through several iterations before and during installation.