Keeping your travel trailer’s fresh water tank clean is crucial for maintaining a safe and enjoyable camping experience. Cleaning involves flushing out stagnant water, disinfecting against bacteria and algae, and ensuring the water you use for drinking, cooking, and showering is free of contaminants.
Why Cleaning Your Fresh Water Tank Matters
A neglected fresh water tank can become a breeding ground for bacteria, algae, and mold. Stagnant water, especially in warmer climates, provides an ideal environment for these unwanted guests to thrive. Regular cleaning and sanitization are essential to prevent health problems and ensure a clean, potable water supply while you’re on the road. Ignoring this crucial maintenance step can lead to unpleasant odors, contaminated water, and potentially serious illnesses.
When to Clean Your Travel Trailer Fresh Water Tank
Ideally, you should clean and sanitize your fresh water tank:
- After winterizing your RV: Before your first trip of the season, ensure the tank is free of antifreeze and any residual contaminants.
- After storing your RV for an extended period: Any time your RV sits unused for a month or more, cleaning is essential.
- Any time the water smells or tastes strange: An unusual odor or taste is a clear indication that your tank needs attention.
- At least twice a year: Even with regular use, a thorough cleaning twice a year is a good preventative measure.
- After using well water from an unfamiliar source: Untested well water can introduce contaminants that require disinfection.
Cleaning Procedure: Step-by-Step
Here’s a detailed guide to cleaning your travel trailer fresh water tank:
1. Gather Your Supplies
You’ll need:
- Household bleach (unscented, 5-6% sodium hypochlorite solution)
- A measuring cup
- A hose (drinking water safe)
- A bucket (optional)
- Screwdriver (for accessing the drain plug)
- Water heater bypass valve (if applicable, ensure it’s in bypass position)
2. Calculate the Amount of Bleach Needed
The recommended concentration is ¼ cup of bleach per 15 gallons of water tank capacity. For example, if you have a 45-gallon tank, you’ll need ¾ cup (12 tablespoons) of bleach.
3. Drain the Existing Water
Locate the fresh water tank drain valve (usually on the bottom of the tank or nearby). Open the valve and allow all the water to drain completely. You can speed up the process by opening a faucet inside the RV to allow air to enter the tank.
4. Prepare the Bleach Solution
Mix the calculated amount of bleach with a gallon or two of water in a clean bucket (or directly into your filling hose). This dilutes the bleach and helps prevent damage to your tank.
5. Fill the Tank with the Bleach Solution
Using your hose, carefully pour the bleach solution into the fresh water tank inlet. Once the solution is in, fill the rest of the tank with fresh water.
6. Run Water Through All Faucets
Turn on each faucet (hot and cold) and shower, one at a time, until you smell bleach. This ensures the bleach solution reaches all parts of your plumbing system. Don’t forget the toilet if it uses the fresh water tank.
7. Let the Solution Sit
Allow the bleach solution to sit in the tank and plumbing lines for at least 4 hours, but no more than 12 hours. This allows the bleach to effectively disinfect the system.
8. Drain the Tank Again
After the soaking period, drain the tank completely through the drain valve.
9. Flush the Tank with Fresh Water
Refill the tank with fresh water and drain it again. Repeat this flushing process multiple times (at least 2-3 times) until the bleach smell is gone. It’s important to completely remove all traces of bleach from the system.
10. Sanitize Your Water Heater (If Necessary)
If you bypassed your water heater during the initial sanitization, you’ll need to sanitize it separately. Drain the water heater, then refill it with fresh water. Run the hot water faucet until the water runs clear and is free of any bleach smell.
11. Test Your Water (Optional)
For peace of mind, you can purchase a water testing kit from a local hardware store or online to confirm the water is safe to drink.
Addressing Stubborn Odors or Taste
If you still detect an odor or taste after multiple flushes, you can try using a baking soda solution. Add one cup of baking soda to a full tank of water and let it sit for a few hours before draining and flushing again. You can also try using a commercially available tank cleaner specifically designed for RV fresh water systems. Follow the manufacturer’s instructions carefully.
FAQs: Cleaning Your Travel Trailer Fresh Water Tank
Here are some frequently asked questions about cleaning and maintaining your travel trailer fresh water tank:
FAQ 1: Can I use too much bleach when sanitizing my tank?
Yes. Exceeding the recommended bleach concentration can damage your tank and plumbing lines. Stick to the ¼ cup per 15 gallons ratio. Excessive bleach can also leave a lingering smell that is difficult to remove.
FAQ 2: What if I accidentally drink water with bleach in it?
A small amount of diluted bleach is generally not harmful. However, if you experience nausea, vomiting, or other symptoms, contact a medical professional. The concentration after following the procedure should be extremely low, but caution is always advised.
FAQ 3: How do I prevent my fresh water tank from getting dirty in the first place?
- Only use potable water sources: Be cautious about where you fill your tank. Avoid questionable water sources like non-designated spigots.
- Drain the tank after each trip: This prevents water from sitting and stagnating.
- Use a water filter: A good water filter can remove sediment and other contaminants before they enter your tank.
- Inspect your tank regularly: Check for leaks, cracks, or other damage that could allow contaminants to enter.
FAQ 4: Can I use vinegar instead of bleach to clean my tank?
While vinegar can help remove mineral deposits and some mild buildup, it is not as effective as bleach for disinfecting against bacteria and algae. Vinegar may be useful for maintenance cleaning, but it is not a substitute for bleach when sanitizing.
FAQ 5: How often should I replace my RV water filter?
Replace your RV water filter every 3-6 months, or more frequently if you use your RV heavily or notice a decrease in water pressure. Refer to the manufacturer’s instructions for specific recommendations.
FAQ 6: What’s the best way to store my RV fresh water hose?
Store your hose in a clean, dry location away from sunlight and chemicals. Consider using a hose reel or bag to protect it from damage and contamination.
FAQ 7: How do I know if my fresh water tank is cracked or leaking?
Look for signs of water damage around the tank compartment, such as dampness, mold, or discoloration. You may also notice a decrease in water pressure or an unexplained loss of water.
FAQ 8: Can I use antifreeze in my fresh water tank?
Never use automotive antifreeze in your fresh water tank. It is toxic and can contaminate your entire water system. Use only RV-specific antifreeze, designed for potable water systems. This is usually a pink colored product, and specifically labeled for use in drinking water systems.
FAQ 9: What’s the purpose of the water heater bypass valve?
The bypass valve allows you to bypass the water heater when sanitizing or winterizing your RV. This prevents the need to fill the entire water heater with bleach solution or antifreeze, saving time and resources.
FAQ 10: How do I find the drain valve on my fresh water tank?
The drain valve is usually located on the bottom of the tank or nearby. Consult your RV’s owner’s manual for the exact location.
FAQ 11: My water pump is making a lot of noise, is that related to the tank cleaning?
A noisy water pump can be a sign of low water level, air in the lines, or a failing pump. Ensure your tank is full and that all faucets are closed tightly. If the noise persists after cleaning, consult a qualified RV technician. The process of cleaning the tank may have dislodged some sediment that is now affecting the pump.
FAQ 12: What kind of hose should I use to fill my fresh water tank?
Always use a drinking water safe hose. These hoses are specifically designed to prevent leaching of harmful chemicals into your water supply. Avoid using garden hoses, as they are not designed for potable water. Look for a hose that is specifically labeled as “drinking water safe” or “potable water hose”.
By following these steps and taking preventative measures, you can ensure that your travel trailer’s fresh water tank remains clean and provides a safe, reliable water supply for all your camping adventures.