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When you are done adding RV antifreeze:
1.
Turn the water pump OFF. Turn antifreeze siphon valve (A) to
the normal position. Remove the clear hose from the container of
RV antifreeze.
2.
Pour 1 cup of RV antifreeze into each sink's drain P-trap.
3.
To prevent staining, wipe the RV antifreeze out of the sinks,
shower (or tub) and toilet using a soft, dry cloth.
In the spring after flushing antifreeze out of the water lines, wash out
the water filter housing, and re-install the water filter (if applicable).
Air Pressure Method
(See page 78)
This method uses compressed air to blow out any remaining water
in the system after initially draining water using drain valves. Tools
required would be an air compressor and a blowout plug.
1.
Turn water heater OFF (both electric and LP gas switches if
applicable). Allow the water in the water heater to cool before
continuing. Periodically run a hot water faucet to check the
temperature to be sure the water had cooled.
2.
Level the RV and drain the fresh water system (see
"DRAINING THE FRESH WATER SYSTEM" on page
65).
3.
Tank water heater bypass should be
set to NORMAL. This allows air to flow
through the water heater. Remove
the water heater drain plug. DO NOT
REMOVE THE DRAIN PLUG IF THE
WATER HEATER IS HOT OR UNDER
PRESSURE. Release pressure using
the pressure release valve and allow
any stored water to cool.
PLUMBING SYSTEM
4.
5.
6.
7.
8.
9.
10. Blow air into the water lines through
11. Blow out the water lines, which can take 5 to 10 minutes.
12. Pour one cup of RV antifreeze into each of the drain P-traps
13. To prevent staining, wipe the RV antifreeze out of the sinks,
14. After RV water lines have been blown out, remove the air hose
In the spring:
•
•
•
•
Water Heater Pressure Valve
If the RV has a cartridge type water filter, the filter must be
removed from the housing.
Run the pump until it is dry (approximately 15 to 20 seconds).
Operating the pump longer than that with no water can damage
the pump.
Open all faucets in the RV. If there is an outside shower, attach
the shower hose to the shower, and open the shower faucets.
Attach a blowout plug to the city water
inlet on the outside of the RV.
Attach the air hose to the blowout plug.
Set compressor to 30 PSI.
Fresh water tank drain should be open.
the blowout plug and the City Water Inlet to evacuate all water
from the lines.
(sinks and bathtub).
shower (or tub) and toilet using a soft, dry cloth.
and the blowout plug from the City Water Inlet.
Turn off all the faucets (inside and out).
Reinstall the water filter (if applicable).
Reinstall the water heater drain plug.
Close all low point and fresh water drains.
Blowout Plug Example
8
Page 77
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