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SECTION 7
PLUMBING SYSTEMS
DUMPING HOLDING TANKS
1. Remove drain hose from rear bumper or
exterior storage compartment.
2. Remove dust cap from drain and connect
drain hose. Be sure it is firmly attached.
3. Place the other end of sewer hose into dis-
posal opening.
4. Open the (large) sewage valve with a quick
pull. OPEN ONE VALVE AT A TIME.
Move hose gently about to dislodge any
waste and to ensure complete drainage.
5. Close sewage valve and open (small) waste
water valve with a quick pull. Make sure
there are no sags in the hose during drainage.
Close valve handle as soon as tank is empty.
6. After both tanks have been drained, run sev-
eral gallons of water into the sewage tank
through the toilet. Then open sewage dump
valve and drain the tank again. Close valve
and replace dust cap securely.
7. It is advisable to add an odor control chemi-
cal to the sewage holding tank. These chemi-
cals are available at most R.V. stores.
8. Rinse sewer hose thoroughly with water and
stow.
NOTE: We recommend that you dump all hold-
ing tanks before traveling to avoid carry-
ing unnecessary weight.
USING ON-SITE SEWER HOOK-UPS
The drain hose may remain attached to the
dump outlet and be routed out the bottom of the
7-4
compartment while the motor home 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 accidental-
ly happen, disconnect the hose, fill the tank about
half full with water, and drive a few miles to dis-
lodge the solids. A few starts and stops will aid in
the process. Then reconnect the hose and drain in
the normal manner.
Holding Tank Heaters - Optional
Your coach may be optionally equipped with
black water and grey water holding tank heaters
to allow use of waste utilities in freezing temper-
atures. The holding tank heater power switch is
located near the monitor panel. The illuminated
switch will glow when the power is on.
DO NOT operate the holding tank heaters un-
less you are providing a supplemental 12-volt
power source to recharge the house batteries.
This means either the shoreline cord must be
plugged into a 110-volt source, or the auxiliary
generator must be operating, or the chassis
engine must be running (such as when driving
down the road). These three sources can prevent
excessive discharge of the house battery.
NOTE: The holding tank heater pads are electri-
cal resistance type heating elements.
This type of heating element typically
uses a large amount of current while
operating. If the tank heaters are used
without a recharging source, they will
drain the house batteries in a relatively
short period. Typically the batteries
would not support overnight heating
without a supplemental charging source.
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