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Sanitizing the RV Fresh Water Tank
If you are a part time RVer, you should be Sanitizing the RV Fresh Water Tank
every trip, and full timers should do this at least annually. The quality of the water in the fresh
water tank is vitally important to your health. Algae and other
possibly harmful bacteria can
grow quite well in your tank if you don’t pay attention to a few
It is a
simple but lengthy
The Procedure for Sanitizing the RV Fresh Water Tank
Start with a nearly full fresh water tank.
Turn off the external water supply and turn on the water
- Turn the water
heater off, and let the water cool.
1/4 cup of household bleach for each 15 gallons of tank capacity in to a
gallon of water. Don’t pour straight bleach into your tank.
the chlorine/water solution to the water tank.
faucet at a time, let the chlorinated water run through them for one or
two minutes. You should be able to smell the chlorine
off the RV fresh water tank and let stand for at least three hours.
the system by flushing all the faucets and the shower for several minutes
each. Don’t forget the outside shower if your rig is equipped with one.
the fresh water tank drain valve to speed up emptying the tank and open
the hot water tank drain plug and drain until it is empty.
all valves and faucets and drain plugs.
water tank with fresh water.
off cold water supply.
a faucet in the RV to relive pressure.
out handle of the Pressure Relief Valve and allow water to flow from the
valve until it stops.
the handle on the valve. It should snap shut.
the faucet and turn on cold water supply. As the hot water tank fills, the
air pocket will be replenished.
each faucet for several minutes each repeating until the tank is again
empty. Make sure you are using the water pump and not an external water
the tank again. The water should now be safe to drink but if the chlorine
odor is too strong you can repeat the fresh water flush.
Your RV fresh water system should now be safe for use.