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TIFFIN MOTORHOMES
–ALLEGRO®
Chapter 11
PLUMBING & BATH FIXTURES
Water Heater Bypass System
The water heater bypass valve (Figure 11-8) is located on the water bay panel. By closing
the water heater supply valve and opening the bypass valve, one can divert water away
from the water heater. This process is performed when winterizing your motor home.
Using the bypass valve will keep antifreeze out of the water heater when winterizing the
motor home. Draining the water heater during winterizing is a MUST. As shown in Figure
11-8, one should close the two outside valves and open the center valve. To prepare the
motor home for reuse, open the two outside valves and close the center valve.
Figure 11-8. Water Heater
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Bypass System
Freshwater Lines
Vibration and flexing encountered when the motor home is traveling can cause pipes and fittings to become loose.
Check all of the plumbing connections for leaks at least on an annual basis. If the water pump runs when all faucets are
turned "off," check for a possible leak. Be sure that the drain valves are closed. Connections at the kitchen and
bathroom faucets normally seal by hand tightening them and then making an additional half-turn with a wrench.
If a fitting leak persists, disconnect it completely and visually inspect it for mineral deposits or foreign material stuck on
the sealing surfaces. Clean the surfaces thoroughly and reinstall the fitting. Take the motor home to an authorized
Tiffin Motorhomes service center for additional repairs if the water system continues to leak. Follow the winterizing
instructions given in Chapter 14 to reduce risk of leaks caused by cracks from freezing pipes. Left unchecked, freezing
damage can be extensive and expensive.
11-6
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