Sanitizing The Fresh Water System - Thor Motor Coach Class C Owner's Manual

WaTEr SYSTEMS

Sanitizing the Fresh Water System

Sanitize the system before initial use, after extended periods of non-use, at least once a year during continuous
use, and whenever there is suspicion that the system has been contaminated.
To sanitize the system with a gravity fill, use the following procedure:
1. Prepare a chlorine solution using a gallon of water and ¼ cup of liquid household bleach
(5% sodium hypochlorinate solution). Use one gallon of solution for each 15 gallons of tank
capacity.
2. With tank empty, and all faucets and drains closed, pour the solution into fresh water tank.
3. Complete filling the tank with fresh water.
4. Switch on the water pump. Open all faucets one at a time until all air is purged, and the water
flows freely.
5. Again add fresh water to the tank until the water level reaches the fill spout.
6. Drain the system by opening all faucets, and the fresh water tank drain valve, while flushing
the system with water of drinking quality.
7. Continue flushing the system, allowing the water to flow for several minutes.
8. Close the tank drain valve and faucets. Refill the system with water of known drinking quality.
Note: A slight chlorine taste may linger. If this is objectionable, mix a solution of 1 quart
Vinegar to 5 gallons of water and add to the tank. Repeat process above, but
without the bleach.
To sanitize the system without a gravity fill, use the following procedure:
Items needed:
1 - Battery powered drill (do not use an electric drill)
1 - Drill powered water pump
1 - 5 gallon bucket to prepare solution
2 - 4 foot sections of ½ inch inside diameter hose
2 - Female hose ends for ½ inch hose with ¾ inch threaded end (compression style)
1 - Male hose end for ½ inch hose with ¾ inch threaded end (compression style)
1 - 1 cup of household bleach
1. Install one male and one female hose end to one of the 4 foot sections of hose. When
completed, the section of hose will have a male hose end on one side and a female hose end
on the other side.
2. Connect this hose to the outlet side (usually marked with an arrow) of the pump. The other
end of the hose will get connected to the city water fill on the coach. Prior to attaching the
hose to the city water fill, remove the pressure regulator first, otherwise the pump will not be
able to push the water past the regulator. The hose will attach to where the regulator use
to be.
3. Install one female hose end to the other 4 foot section of hose.
4. Connect this hose to the inlet side of the pump. The end of the hose that does not have hose
end will go into the five gallon bucket to pump out the sanitizing solution.
5. Fill the bucket half full with water and add one cup of household bleach. Attach battery drill to
the pump making sure that the drill rotation matches the rotation needed to work the pump.
6. Using the drill, pump the solution from the bucket into the fresh water tank until solution is
gone. Remove the pump/drill apparatus and complete filling the tank with water.
7. Switch on the water pump. Open all faucets one at a time until all air is purged, and the water
flows freely. Once the tank is half empty turn off the water pump.
8. Again, add water to the tank until it is full. Allow the system to stand undisturbed for at least
15 minutes.
9. Turn the water pump on to drain the system by opening all faucets, and the fresh water tank
drain valve, while flushing the system with potable water.
10. Continue flushing the system, allowing the water to flow for several minutes, and then turn off
the water pump. Close the tank valve and faucets. Refill the system with potable water.
6.8
Thor MoTor CoaCh