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To drain your system, start with the water tank. Open the tank drain valve and leave it
open. When empty, start the water pump and open several faucets. Run the pump until no
more water comes out. Be sure to shut off the water heater. The switch is located above
the entry door.
Open the low-point drain valves and all hot and cold faucets in the water system service
bay. Open the shower flow valve (on the showerhead) and place the showerhead on the
shower floor to drain.
Drain the water heater by removing the drain plug. Allow the water to drain completely
with all hot water faucets open. Care must be taken to avoid hot water burns. Make sure to
open the flush valve on the toilet and leave it open. See the manufacturers' manuals for
details.
Finally, if possible, blow the lines out with compressed air. Insert a compressed air source
- no more than 35 PSI - into the city fills connection. Be sure to use a water trap or similar
device to prevent entry of contaminants from the air tank into the water system. Make
sure that all faucets and valves, including the toilet, are open. No special adapter is neces-
sary. However, you may wish to purchase an air chuck for this purpose, available from
most RV stores.
Waste Water System
Preparing the waste systems will prevent damage and also control odors. Empty the tanks,
as outlined on page 5-5 of this manual.
Every sink, shower, and equipment drain should be flushed with a hot soapy water solution,
then rinsed. A cup of potable RV anti-freeze should be added to each "P" trap in each sink
and shower. The tanks should be rinsed. If possible, add a chemical deodorant to the black
waste tank and allow it to stand for several days. Completely drain and rinse each tank.
The sewer termination assembly should be cleaned. The knife valves should be lubricated
with light oil. The toilet valve should also be lubricated.
Other Systems
Before storing your coach for extended periods of time, add an algaecide to the diesel fuel
system.
Trek Owner's Manual
10 ~ 120
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Table of Contents
Troubleshooting
