Drain Traps & Auto Vents; Draining The Waste Holding Tanks - Monaco 2002 Diplomat Service Manual

Water Systems
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Drain Traps & Auto Vents
OM070152.eps
Draining the
Waste Holding
Tanks
6 • 1 7 8
Leaks:
• Back of toilet – Check water supply line connection.
• Between closet flange and toilet – Check screws for tightness. If leak
continues, remove toilet and check flange height. Adjust, if neces-
sary to 7/16" above floor. Replace flange seal if damaged.
• Poor flush – A good flush should be obtained within two to three seconds.
If problem persists remove the water supply line and check flow rate.
The flow rate should be at least ten quarts (9.5 liters) per minute.
• Bowl will not hold water – Check for foreign material in valve blade
groove in the flush drain.
When parked in an area with a sewer hook up, "exercise" the drain pipe
before hooking up the sewer hose. Swivel the pipe up and down by firmly
grasping both sides of the sewer drain pipe hose connection. This will exercise
the O-rings. Leave the drain pipe pointing up to prevent any residual material
from running out.
Sinks, shower and clothes washer drains incor-
porate a water trap or "P-trap" and auto vents to pre-
vent waste water holding tank odor from entering
the motorhome. These P-traps for the most part are
usually within 54" of a vent tee. These traps must
have water in them to block odors. During storage
water can evaporate and allow odor into
motorhome. If odor is detected run water into
sinks, shower and clothes washer to fill drain traps.
The auto vent by design is to assist in the flow of
water in the drain lines. They enable a smooth flow
water in the drain without creating vacuum pressure
in the lines.
The auto vent, if stuck in the open position, can
allow grey odors to enter the motorhome. These
auto vents also double as "clean outs" in the event
you have to snake out a line.
NOTE: Most chemical mixtures for
holding tank odor control are poi-
sonous. Follow the product manufac-
turer's directions and warnings when
using any holding tank additive.
D I P L O M A T