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How To Build RV Fresh Water Gravity Fill Camping Water Container by CampingForFoodies
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DIY Portable Water Tank For Gravity Filling Onboard RV Fresh Water Tank

This portable water container is used to transfer water into an RV's fresh water tank through a gravity feed method.
Prep Time5 minutes
Active Time10 minutes
Total Time15 minutes
Yield: 1 Container
Author: Pete
Cost: 125.00

Equipment

  • 1 Screwdriver
  • 1 RV fresh water hose

Materials

Instructions

Build the tank

  • Gather equipment and materials. Make sure the fitting sizes are compatible with each other and your water hose.
  • Using the screwdriver, punch out the center portion of the 3/4-inch threaded part of both barrel caps. (This is where your spigot valve and hose adapter will thread into.)
    How To Build RV Fresh Water Gravity Fill Camping Water Container by CampingForFoodies
  • Thread the spigot valve into the threaded barrel cap that is closest to the container rim.
  • Screw the hose adapter into the threaded barrel cap that is furthest from the container rim.
  • Screw the blow out plug/filler vent cap into the hose adapter. (Note: This becomes the filler port for using a drinking water hose to fill the portable water tank. IMPORTANT: If you use this method for filling, make sure you open the spigot valve to provide proper venting to avoid rupturing the tank.)

Fill tank with water

  • Use a drinking water hose to fill your portable camping water container by one of two methods:
  • Method #1: Remove the blow out plug cap/filler vent cap from the hose adapter, then thread the hose to it and fill the container. IMPORTANT: If you use this method for filling, make sure you open the spigot valve to provide proper venting to avoid rupturing the tank.
  • Method #2: Completely remove either cap and simply fill the container through the opening.

Transfer From Portable To RV Fresh Water Tank

  • Ensure the portable RV camping water container is higher than the RV fresh water filler port, otherwise the gravity fill won’t work.
    DIY Portable Water Tank For RV Boondocking Using Gravity Fill Camping Water Container by CampingForFoodies
  • Lay the portable RV camping water container on its side with the spigot valve facing down.
  • Thread the drinking water hose to the spigot valve.
  • Place the other end of the drinking water hose in the RV fresh water filler port opening.
    How To Refill Fresh Water RV Tanks During Camping Trips by CampingForFoodies features an RV with the fresh water connection port and city water connection port uncapped and ready for filling by a drinking water hose that is ready to connect for filling with text over the image that reads How To Refill Fresh Water RV Tanks.
  • Open the spigot valve and loosen the cap on the vent/filler port as necessary to vent the tank as it gravity feeds into your RV fresh water tank.
  • The RV fresh water tank will overflow when it is full. At that time, close the spigot valve, remove the hose from the RV fresh water filler port opening and the portable RV camping water container, then, replace the cap on the travel trailer’s fresh water filler port.

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