FRESH WATER SYSTEM WINTERIZING
Winterizing the fresh water system in temperatures below
freezing, will provide a measure of protection for system
plumbing components.
After draining the fresh water
system using the procedures listed above, complete the
winterizing with the
following
steps:
SYSTEMS WITHOUT WATER HEATER BYPASS
1 Pour anti-freeze approved for RV fresh water systems
in the fresh water 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 pump to “ON” and pump fluid through the
entire fresh water 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 fresh water sanitizing
procedures before using the fresh water 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
water lines.
3.Close the valve between the fresh water 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 fresh
water approved anti-freeze.
6.Turn the pump to “ON” and pump fluid through entire
fresh water system lines. This procedure will bypass
the hot water heater conserving anti-freeze.
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 fresh water sanitizing steps
before using the fresh water system to cook, for
drinking, etc.
WARNING: Automotive or windshield washer
type antifreeze can be fatal if swallowed. DO NOT
use them in the fresh water system to protect the
drains in your trailer from freezing.
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