Comprehensive Guide to Your RV's Fresh Water System: Operation and Setup

This article provides a detailed overview of the fresh water system in your RV, including how to fill the fresh water tank, connect to city water, and operate the system safely and effectively.

Recommended Equipment

  • Potable Water Hose: Essential for connecting to the water supply.
  • Water Pressure Regulator: Helps control the water pressure entering the RV.

Understanding Your Fresh Water System

All Keystone RV units come equipped with a fresh water tank, though the size may vary by model. Each unit is also fitted with "Low-Point" drains, typically located underneath the RV, designed to drain water from the water tank and all lines. Look for the blue (cold) and red (hot) water lines, as well as a white low-point drain for the fresh water tank. Ensure these drains are closed when using the fresh water system to prevent water from draining out the bottom of the unit.

Filling Your Fresh Water Tank

Your approach to using the fresh water system will depend on your camping style. If you're dry camping (without a water supply), you'll need to fill the fresh water tank before arriving at your campsite. Remember that fresh water adds weight to your RV, reducing its Cargo Carrying Capacity by approximately 8.3 lbs. per gallon.

Important Notes:

  1. ONLY USE POTABLE WATER in the fresh water system. Potable water is safe for drinking.
  2. SANITIZE THE FRESH WATER SYSTEM before use to eliminate potential bacteria or viral contamination. This involves using a bleach/water solution.

Methods for Filling the Fresh Water Tank

Gravity Water Fill

  1. Remove the cap from the exterior connection labeled "Fresh Water Connection."
  2. Insert your potable water hose and turn on the water.
  3. Note: There is no automatic shut-off, so do not leave the unit unattended while filling. Periodically check the monitor panel for the water level.
  4. Once full, turn off the water supply immediately to avoid system damage not covered by warranty.

Pressure Water Fill

  1. Hook your potable water supply to the city water fill inlet.
  2. Turn the valves to the tank fill position and turn on the water supply.
  3. Similar to gravity filling, monitor the water level and turn off the supply once full.

Operating the Fresh Water System

After filling the fresh water tank, turn on the water pump, usually located on the monitor panel. The pump activates only when a demand is placed on the system. When you turn on a faucet, the pump will run to provide water, then shut off when the faucet is closed.

Using City Water

If you have a water supply available, connect a potable water hose to the city water fill, which supplies pressurized water directly to your RV, bypassing the fresh water tank. Always use a water pressure regulator to control the pressure entering the RV. Open the desired faucet, and water will flow after a brief air purge.

Note: Do not leave the RV unattended for long periods when connected to city water.

Filling the Water Heater

To fill the water heater:

  1. Check the Water Heater Bypass: Ensure it is turned off to fill the water heater tank.
  2. Open the relief valve on the outside of the water heater to check for water presence.
  3. If water flows from the relief valve, open a hot water spigot in any faucet to allow the water to travel from the source into the water heater.

Conclusion

You are now ready to use your RV's fresh water system! For more detailed information, consult your Owner’s Manual.

Disclaimer: The information contained in this article is deemed to be true and accurate at the time of publication. However, due to the evolving nature of our products and services, there may be changes or updates that occur after this article was published. We encourage users to verify the contents and consult with their dealer or Keystone RV for the most current information. If you have any questions or require further clarification, please do not hesitate to contact your dealer or reach out to Keystone RV directly.

Additional Help

Live Chat

Live chat is available Monday - Thursday, 9:00am to 5:00pm ET & Friday 9:00am - 4:00pm ET.

CHAT NOW

Contact Customer Support

Our owners relations call center is available Monday - Thursday, 9:00am to 5:00pm ET & Friday 9:00am - 4:00pm ET.
Phone (Toll Free): (866) 425-4369

CONTACT US

Find a Service Center

Use our locator to find your preferred service center and speak with factory-trained technicians.

LOCATE DEALER