How to Clean Your RV's Water System

When the hot water in your RV starts to smell like rotten eggs, it's time to clean the water system. The smell can mean anything, but don't take chances - it's likely to indicate a buildup of bacteria.

Things You'll Need

• Detergents
• Liquid Bleach
• Long Wire Brushes
• Vinegar
• Water
• Baking Soda
• Rubber Gloves
• Measuring Spoons

Instructions

1. Turn off the water heater and let it cool.

2. Drain and flush the tank.

3. Brush with a stiff wire brush, being careful not to damage the threads of the tank.

4. Make sure all the sediment has been stirred up and flushed out of the tank.

5. Make sure the drain hole is free of sediment.

6. Fill the tank with two parts vinegar to one part water, and let stand for at least 3 hours before draining; or,

7. Fill the tank with about 4 tsp. household detergent for every 10 gallons of water and flush the entire water system with it. Remove faucet aerators and shower heads before doing this; or,

8. Fill the tank with 5 to 6 oz. (2/3 c. to 3/4 c.) bleach per 10 gallons of water. Let this sit in the system for a few hours, and then flush the entire water system with it.

9. Drive your rig around with the water and cleaning solution mixture in it. This will slosh the mixture around.

10. Fill your hot water tank with a solution of 1/2 c. baking soda to one gallon of water, and let sit. Drain.

11. Flush out the water system with water until the smell of vinegar, detergent or bleach is gone.

12. Repeat as necessary.

Tips & Warnings

• Using household detergent or bleach has the added advantage of freshening the entire water system, not just the hot water tank.

• Never turn on your water heater while it is empty.