how to clean a rv fresh water tank

Daniel Parker

3 min read

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18-01-2025

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Meta Description: Learn how to thoroughly clean your RV fresh water tank to prevent bacteria and ensure safe drinking water. This comprehensive guide provides a step-by-step process, including cleaning solutions and preventative measures. Keep your RV water safe and healthy with our easy-to-follow instructions!

Why Clean Your RV Fresh Water Tank?

Your RV's fresh water tank is a vital part of your travels, providing water for drinking, cooking, and showering. However, this enclosed system is prone to accumulating sediment, algae, and bacteria over time, especially if it sits unused for extended periods. A clean tank is essential for preventing unpleasant tastes, odors, and more importantly, potential health risks. Neglecting your fresh water tank can lead to illness, so regular cleaning is crucial. This comprehensive guide will show you how to clean your RV fresh water tank effectively and safely.

Preparing to Clean Your RV Fresh Water Tank

Before you begin, gather your supplies. You'll need:

• Cleaning Solution: There are several options:

  • Bleach: A common and effective choice. Use a diluted solution (approximately 1/2 cup bleach per 15 gallons of water). Note: Thoroughly rinse afterwards to remove all traces of bleach.
  • RV Tank Cleaning Solution: Many specialized RV cleaning solutions are available at camping supply stores. These often contain enzymes or other agents designed to break down organic matter. Follow the product's instructions carefully.
  • Baking Soda and Vinegar: A natural and eco-friendly option. Use about 1 cup baking soda followed by 2 cups white vinegar. This creates a fizzing reaction that helps loosen debris.

• Garden Hose: For filling and rinsing the tank.

• Water Pressure Regulator: To prevent damage to your tank's fittings.

• Bucket or Container: For collecting wastewater.

• Cleaning Brushes or Sponge: To scrub the tank if needed (optional, but helpful for stubborn stains).

• Gloves: Protect your hands from harsh chemicals and debris.

• Safety Glasses: Protect your eyes from splashes.

Step-by-Step Cleaning Process

1. Empty the Tank: Completely drain the fresh water tank by opening the low-point drain valve.

2. Fill the Tank with Cleaning Solution: Add your chosen cleaning solution to the tank, ensuring it reaches all areas. For bleach, be sure to use the recommended ratio of bleach to water.

3. Swirl the Tank (Optional): If possible, gently rock or swish your RV to distribute the cleaning solution throughout the tank. This helps the solution reach every surface.

4. Let it Soak: Allow the cleaning solution to sit in the tank for at least 4-6 hours, or ideally overnight. This allows ample time for the solution to break down sediment and kill bacteria.

5. Rinse Thoroughly: After the soaking period, thoroughly rinse the tank with clean water multiple times. Drain the tank completely between each rinse. Make sure to flush the water lines as well by running water through all your faucets and shower heads until the water runs clear.

6. Inspect the Tank (If Possible): If you can access your tank for a visual inspection, check for any remaining debris. If necessary, use a cleaning brush or sponge to scrub stubborn stains.

7. Final Rinse and Refilling: Once you're satisfied with the cleanliness, perform a final rinse. Then, refill the tank with fresh, clean water.

Preventative Measures to Keep Your Tank Clean

• Regular Cleaning: Clean your fresh water tank at least twice a year, or more frequently if you use it often or live full-time in your RV.
• Proper Winterization: When winterizing your RV, use a non-toxic RV antifreeze to prevent freezing and damage. This also helps prevent the buildup of bacteria and algae.
• Avoid Contamination: Don't use the tank to store anything other than potable water. Avoid storing chemicals or other substances inside.
• Use a Water Filter: A good quality water filter can help remove sediment and improve the taste of your water.

Addressing Common Problems

Q: What if my water still smells bad after cleaning?

A: If the odor persists, it might indicate a problem with your water lines or a more serious issue within the tank itself. You may need a more thorough cleaning or even a professional inspection.

Q: How often should I clean my RV fresh water tank?

A: Aim to clean your tank at least twice per year, or more frequently if you use it heavily or store your RV for extended periods.

By following these steps and preventative measures, you can ensure your RV's fresh water tank remains clean and safe, providing you with fresh, healthy water for years to come. Remember safety first—always wear gloves and eye protection when working with cleaning solutions.