8-13
5. OPEN all faucets and drains, including outside shower faucets (if so
equipped).
6. Using an air hose and adapter (customer supplied), blow air through the City
Water connection. Any remaining water will blow out in five to ten minutes.
7. Pour one cup of non-toxic RV antifreeze into the sink drain P-trap.
Demand or power plumbing system method:
It may be easier to winterize the RV with another person to assist you.
NOTE: Antifreeze should never enter the hot water heater or the water filter.
1. Turn water heater gas valve OFF (if so equipped). (located outside RV)
2. Level the RV and drain the fresh water plumbing system. (See Draining the
Fresh Water System)
3. Replace the water filter cartridge with the clear plastic bypass hose (if so
equipped). Water heater (if so equipped) should now be empty after
performing Step 2. Water heater valves A&B should still be closed, valve C
open.
4. Make sure the “fresh water tank drain” and “low point drains” are closed.
5. Close the fresh water tank shutoff valve (Valve D in Fig 8.6a-c)
6. Open the water pump clear hose valve (valve E in Fig 8.6a-c) and insert the
opposite end of the clear hose into a container of RV antifreeze solution.
7. Turn the water pump switch ON.
8. Open the hot water faucets, including outside shower (if so equipped) until RV
antifreeze begins to flow continuously.
9. Close the hot water line faucets and outside shower (if so equipped) and
repeat with the cold water line faucets. (If equipped with a regular RV toilet
hold open the lever on the toilet until antifreeze runs into the bowl).
When you are done adding RV antifreeze:
10. Turn the water pump OFF. Turn valve E (Fig 8.6b) OFF. Remove the clear
hose from the container of RV antifreeze. Leave the water tank shutoff valve
D closed to keep antifreeze out of the fresh water tank.
11. Pour 1 cup of RV antifreeze into the sink drain P-trap.
12. To prevent staining, wipe the RV antifreeze out of the sinks, shower (or tub)
and toilet using a soft, dry cloth.
NOTE: In the spring when flushing antifreeze out of the water lines make
sure to turn valve D (the fresh water tank shutoff) back ON.
If needed, contact your RV dealer for assistance.
GRAY WATER DRAIN
Camping trailers are not equipped with gray water tanks but they do include either
a gray water dump valve, or a gray water drain for the sink. Certain models have a
gray water drain plug located under the front of the trailer. It has a threaded fitting
that a garden hose will attach to. (Fig 8.10). Other models are equipped with a
gray water dump valve. The dump valve is located outside and under the trailer
(Fig 8.9). The gray water dump valve will have a gray handle. The dust cap
should be removed before operating the valve handle.
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