7-5
SECTION 7 –
PLUMBING
Disinfecting with Gravity Fill
1. Prepare a chlorine solution using 1 gallon of
water and 1/4 cup of household chlorine
bleach (sodium hypochlorite solution). With
tank empty, pour chlorine solution into the
tank through the gravity fill port.
Use 1 gallon solution for each 15 gallons of
tank capacity. This procedure will result in a
residual chlorine concentration of 50 ppm in
the water system.
NOTE: If a 100 ppm concentration is desired,
use 1/2 cup of household bleach with 1
gallon of water to prepare the chlorine
solution. One gallon of this solution
should be used for each 15 gallons of
tank capacity.
2. Complete filling of tank with fresh water.
3. Turn off water heater, then bypass water
heater to prevent filling the water heater tank
with a high concentrate of chlorine.
4. Open each faucet in the motorhome and run
the water until a distinct odor of chlorine can
be detected in the water discharged. Do not
forget the hot water faucets.
5. Let the system stand at least 4 hours when
disinfecting with 50 ppm residual chlorine.
(If
a shorter time period is desired, then a 100
ppm chlorine concentration should be
allowed to stand in the system for at least 1
hour).
6. Drain the water tank and refill with fresh
water.
7. Open each faucet again and run fresh water to
flush chlorinated water from the lines. Run the
water until there is no odor of chlorine
detected in the water discharged. Do not
forget the hot water faucets.
8. Turn water heater bypass to normal position.
9. Turn on water heater.
10. Water system is now disinfected.
Disinfecting with Tank Fill
When disinfecting through the tank water fill,
an external cartridge-type water filter assembly
must be connected in-line between the city water
hose and the tank fill inlet to add disinfecting
solution to the tank. These filters are commonly
available at most RV supply stores.
WARNING
Chlorine is poisonous. Do not misuse.
Recap bottle and clean all utensils after
use.
Water Heater Bypass Valve
(See “Water System Drain Valve Locations”
chart at the end of this section for location on
your model)
*Model 59G
Water Heater Bypass Valve
(See “Water System Drain Valve Locations”
chart at the end of this section for location on
your model)
*Model 59K shown with bed top removed
