We installed 22 gallons of fresh water capacity and 22 gallons of gray water capacity onto this 144 Sprinter. We used the passenger side 22 gallon wheel well tank, and the driver side undercarriage tank, both from S&B filters as our holding tanks.

Coming into the tank we installed the water fill through the van wall. Coming out of the tank we have a vent and an overflow drain that goes through the van floor. The water exits the fresh tank through the pre-threaded hole at the bottom of the tank and we quickly routed this to our standard plumbing set up (check out our parts list for ideas putting together your system):

• Shurflo Water Pump - to pressurize your system

• Shurflo Accumulator Tank - to help maintain consistent pressure in the system

• Shurflow water pump filter - to catch large particulates before they get to the pump

This van didn’t get hot water or an outdoor shower, so it was pretty much a straight shot from the pump to the sink. One thing that we like to include in our systems is a blow out valve for customers to winterize their systems without antifreeze. The only way to guarantee water won’t freeze is to use RV antifreeze, but with this piece installed, compressed air can be blown through the lines to force out any water that the pump is unable to move. We install a pex shut off valve in line with this so that the lines can be shut off after the pump (we don’t advise blowing compressed air through the pump).

For the water fill, we drilled out the pre threaded hole that was tapped into the tank and then we install this threaded elbow fitting to run to our water fill. We connected the water fill to the tank with this 1 1/2” ID Flexible tubing and tightened everything down with hose clamps.

The final piece of Laura’s plumbing system was potable water. We used a Guzzle H20 Stealth Flex 5 that we sourced from Agile Offroad to get drinking water to the sink. The water filter kit from Agile came with a drinking water faucet, and then at the sink we used a Chrome Dura Faucet Pull-Down Kitchen Sink Faucet for the unfiltered water.

Once everything was hooked up, we added some additional insulation behind the water tank to keep it as warm in the plumbing cavity as possible. We also wrapped all of the pex with this insulated pipe sleeve for an additional layer of protection in cold temperatures.