how to flush fresh water tank on rv

3 min read 18-01-2025

Meta Description: Learn how to flush your RV fresh water tank properly! This comprehensive guide provides a step-by-step process, tips for preventing contamination, and answers common questions about RV water tank maintenance. Keep your RV water safe and clean with our easy-to-follow instructions. Don't let contaminated water ruin your next trip!

Why Flush Your RV Fresh Water Tank?

Your RV's fresh water tank is a vital part of your camping experience, providing water for drinking, cooking, and showering. However, this tank can become contaminated over time. Stagnant water breeds bacteria and algae, leading to unpleasant odors and potential health risks. Regular flushing is crucial for maintaining water quality and preventing problems. Ignoring this important maintenance task can lead to costly repairs down the road.

Essential Tools and Materials

Before you begin, gather the necessary supplies:

Garden hose: A long hose is helpful for reaching your water tank's fill point.
Water pressure regulator: This prevents excessive water pressure from damaging your RV's plumbing.
RV flush kit (optional but recommended): These kits make flushing easier.
Bleach (optional): A small amount of bleach can help disinfect the tank.
Cleaning solution (optional): RV-specific cleaning solutions are also available.
Measuring cup: For accurate bleach or cleaning solution measurements.
Gloves: Protect your hands while cleaning.

Step-by-Step Guide to Flushing Your RV Fresh Water Tank

1. Prepare Your RV:

Locate your fresh water tank: Consult your RV's owner's manual if you're unsure of its location.
Park your RV on level ground: This ensures proper draining.
Open all water faucets: This allows air to flow freely during the flushing process.

2. Empty the Fresh Water Tank:

Open the low-point drains: These are usually located at the bottom of your water tank. They allow water to drain completely.
Open the drain valve: This allows any remaining water to drain completely. You can accelerate the draining by slightly opening a faucet.

3. Rinse the Fresh Water Tank:

Connect your garden hose: Attach your garden hose to your RV's city water inlet. Ensure that you are using a pressure regulator to protect your system.
Fill the fresh water tank: Fill it completely.
Add Bleach or Cleaning Solution (Optional): If using bleach, add 1/4 cup of unscented bleach for every 10 gallons of water. Follow the directions on your cleaning solution if you choose to use one. Let the water sit for 24 hours if using bleach.
Open the low-point drains again: Let the water flush through the tank, removing sediment and debris.
Repeat: Repeat this process several times to completely clean the tank.

4. Final Rinse:

Fill the tank with clean water: After the initial flush, fill the tank one last time with clean water.
Drain the tank: Drain the tank thoroughly. You may need to repeat this a few times to ensure all the bleach or cleaning solution is removed.
Check for Clean Water: After the final rinse, carefully check the water for lingering bleach or cleaning solution residue.

5. Refill and Test:

Refill the fresh water tank: Fill the tank with fresh, clean water.
Test the water: Run water through all faucets to ensure there's no lingering bleach odor or other signs of contamination.

How Often Should You Flush Your RV Fresh Water Tank?

The frequency of flushing depends on usage and climate. As a general rule, you should flush your RV fresh water tank:

After each trip: This is essential to remove any contaminants accumulated during your travels.
Every 3-6 months (even if not used frequently): This prevents stagnation and the buildup of bacteria.

Preventing Contamination

Avoid using harsh chemicals: These can damage your RV's plumbing.
Properly store your RV: Store your RV in a dry and clean place, especially during the off-season.
Use a water filter: A good water filter will improve the quality of your drinking water and reduce the need for frequent flushing.

Troubleshooting

Cloudy water: This indicates sediment buildup. Repeat the flushing process.
Bad odor: This usually signifies bacteria. Increase the bleach concentration or use an RV-specific cleaning solution. If the problem persists, consult an RV specialist.

By following these simple steps and practicing preventative measures, you can ensure your RV's fresh water tank remains clean and safe, providing you with fresh, potable water throughout your travels. Remember, regular maintenance is key to a pleasant and healthy RVing experience.