Freshwater System Winterizing - Winnebago Towables User Manual

Hot and Cold Drain Petcocks
FRESHWATER SYSTEM
WINTERIZING
Winterizing the freshwater system in
temperatures below freezing will provide a
measure of protection for system plumbing
components. After draining the freshwater
system using the procedures listed above,
complete the winterizing with the following
steps:
Systems Without Water Heater Bypass
1. Pour antifreeze approved for RV freshwater
systems in the gravity fill to freshwater
holding tank. Depending on the capacity of
the water heater in the trailer, the amount of
antifreeze used should be 7-12 gallons.
2. Turn the water pump to "ON" and pump fluid
through the entire freshwater system.
3. Low point petcock drains may be opened
briefly to ensure that the entire system
contains antifreeze.
4. Open all faucets and remove drain stops.
5. Be certain to complete the freshwater
sanitizing procedures before using the
freshwater system for cooking, drinking,
etc.
Systems With Water Heater Bypass
1. Close the hot and cold water valves entering
and exiting the hot water heater.
2. Open the crossover valve connecting the cold
and hot waterlines.
3. Close the valve between the freshwater tank
and the water pump.
4. Open the valve on the other side of the water
pump connected to a siphon hose.
5. Insert the siphon hose into the container of RV
freshwater approved antifreeze.
6. Turn the pump to "ON" and pump fluid
through entire freshwater system lines. This
procedure will bypass the hot water heater
conserving antifreeze.
7. Turn on faucets in kitchen and bath.
8. Keep pump running until antifreeze flows
from faucets and turn water pump "OFF".
9. Leave all faucets open and remove drain
stops.
10. Close the valve at the siphon hose.
11. Be certain to complete freshwater sanitizing
steps before using the freshwater system.
Water Heater Bypass Valves
WA RNING
Automotive or windshield washer type
antifreeze can be fatal if swallowed.
DO NOT use them in the freshwater
system to protect the drains in your
trailer from freezing.
SECTION 7 –
PLUMBING
7-3