SECTION 7 –
PLUMBING
7-10
closed to avoid sewage back-up into gray
tank. Gray water also rinses any black
water solids from the sewage drain hose.
5. Open the Gray Waste Tank Drain Valve. Be
sure there are no sags in the hose to ensure
complete drainage. Close Gray Waste Tank
Drain Valve as soon as tank is empty.
Models 38F, 38W, and 38D is featured with
two gray waste tanks. Therefore, two Gray
Waste Tank Drain Valves must be opened.
6. Add an odor control chemical to the sewage
holding tank through the toilet. These
chemicals are available at most RV supply
centers.
7. Rinse sewage drain hose thoroughly with
water before stowing.
NOTE: We recommend that you dump all
holding tanks before traveling to avoid
carrying unnecessary weight.
Flushing your Black Water Holding
Tank
The black water holding tank is equipped with
an internal spray head that allows you to rinse the
inside of the tank with a shower of clean water
after dumping.
1. Dump your black water holding tank in the
usual manner at approved sewage disposal
station.
2. Leave Black Waste Tank Drain valve open
while flushing tank.
3. Attach a garden hose from a city water
hydrant to the Black Waste Tank Flush Inlet
fitting in the water service center. (This inlet is
clearly marked separate from the City Water
inlet).
4. Turn the water on to begin flushing. Allow
water to run for about three minutes.
5. Disconnect hose from flushing system and
close Black Waste Tank Drain valve.
Using On-Site Sewer Hook-Ups
The sewage drain hose may remain attached to
the sewage drain outlet and be routed out the
bottom of the compartment while the motorhome
is parked and connected to an on-site sewage
hook-up.
When using a sewer hook-up, keep the dump
valves closed until a tank becomes full or when
preparing to leave the site. This keeps the solids
in suspension, allowing them to be carried out
with the liquids when the dump valve is opened.
If the valve is left open, the liquids will drain off,
leaving solids in the tank. Should this
accidentally happen, disconnect the hose, fill the
tank about half full with water, and drive a few
miles to dislodge the solids. A few starts and
stops will aid in the process. Then reconnect the
hose and drain in the normal manner.
CAUTION
Do not use the tank flush valve unless the
fullway termination valve is in the open
position. May result in an unsanitary
condition leading to illness or personal
injury.
WARNING
Service inlet access must be closed when
utility connections are not in use.
Black Waste Tank Flush Inlet
(Located in water service center)
-Typical View
