Thor Motor Coach CLASS B, Owner'S Manual

Page: 101 / 116

97
10
WA T E R S Y S T E M
T H O R M O T O R C O A C H | M A D E T O F I T
of the hose into a gallon container of RV antifreeze (this
quantity should be enough to winterize the motorhome).
To assist the siphoning process, place the container on a
surface approximately two feet above ground level and
use a short length of garden hose (15 feet or less).
9. Turn the water pump ON. If the water pump fails to self-
prime, temporarily open the low point drains. Close the
low point drains as soon as the water pump primes (RV
antifreeze will begin draining out), and before continuing
to the next step.
10. Open the hot water side on all faucets (kitchen, lavatory,
shower, and exterior shower) until RV antifreeze begins
to flow continuously.
11. Close the hot water faucet valves and repeat with the cold
water faucets; opening the valves, then close the valves
when antifreeze flows through the faucet.
12. Flush the toilet a couple of times until you see antifreeze
in the bowl.
WHEN YOU ARE DONE ADDING RV ANTIFREEZE:
13. Remove the water hose from the container of RV
antifreeze.
14. To prevent staining, wipe the RV antifreeze out of the
sinks, shower, and toilet using a soft, dry cloth.
NOTE: Do not operate the water heater or use the
motorhome plumbing system after the water system
has been winterized.
De-winterizing The Water System
1. Drain the holding tanks (fresh water and waste water).
2. Attach a potable water hose to the fresh water tank fill
and fill the fresh water tank.
3. Turn ON the water pump and open the cold water side
of all faucets and shower fixtures. Shut OFF the faucet
and shower fixtures after the water runs clear (no pink
residue), and repeat for the hot water side.
4. Flush the toilet until clear water runs into bowl.
5. Dump the holding tanks again.
6. Sanitize the water system, Refer to Sanitizing the Fresh
Water System.
7. If a potable (drinking) water filter has been installed:
drain the water lines, remove the assembly, clean and
reinstall using a new potable (drinking) water filter.
8. When ready to use the water heater, open the bypass
valve allow water to enter and fill the water heater tank
(remember to shut OFF the water heater bypass valve, if
equipped).
NOTE: Although most RV antifreeze solutions are
biodegradable, high concentrations may be dam-
aging to plant and animal life. Check with local
ordinances regarding the proper disposal of RV
antifreeze.
For information concerning your particular motor-
home’s water system and installed equipment, contact
TMC Customer Care or refer to the TMC Water
System Guide, available from the TMC Owners Re-
source.
Cold Weather Use of the Water System
Many owners choose to use their motorhomes throughout
the entire year or encounter freezing temperatures during
travel. Due to the risk of severe damage, prolonged use of the
water system in severely cold weather is not recommended.
However, winter traveling can be safe for you and your
motorhome’s water system if you follow a few precautions.
To avoid damage caused by freezing, the water system and stor-
age tanks of your motorhome are dependent on the ambient
temperature of the motorhome remaining above 32° F (0° C).
When fully functioning and the temperature is set properly,
the furnace will provide enough heat to protect the water
system. In severe cold however, it is wise to monitor the water
temperature in the tank, and take appropriate steps to drain
and winterize if necessary. In weather below freezing, it may
also be necessary to open the lower cabinet doors at night in
both the bath and kitchen areas to keep warmer air circulating
around the water pipes, drain pipes, and fixtures. Use your
electric holding tank heaters (if equipped) and always ensure
you have an adequate supply of LP fuel to keep the furnace
operational.
Temperatures below freezing (32°F; 0°C) can damage
water system components. Damage caused by freezing
temperatures may not be covered by warranties.
Always ensure the water system of your motorhome is
protected from freeze damage.
NOTICE NOTICE