SECTION 10
PLUMBING SYSTEMS
10-6
•
Don’t dispose of sanitary napkins or other
non-dissolving items in the toilet.
•
Don’t put automotive antifreeze or caustic
chemicals, such as laundry bleach or heavy
detergents into the toilet or holding tank.
These products may damage plastic or rubber
parts in the system.
Cleaning the Toilet
The toilet should be cleaned regularly for
maximum sanitation and operating efficiency. If
an odor is apparent from the toilet:
1. Clean the toilet bowl with a mild bathroom
cleaner. Do not allow cleaners to sit in the
bowl for long periods of time to avoid dam-
aging the seals. Do not use caustic or abra-
sive cleaners because it may damage the
plastic surfaces.
2. Dump and rinse holding tank.
3. Add odor control chemical in amount speci-
fied after cleaning and every few days during
use.
4. Remove the water line from the base of the
toilet and clean the screen.
5. If the flush valve becomes stiff after
extended use, it may be lubricated with a sil-
icone spray.Turn the water pump off and
operate flush pedal to drain water from the
toilet bowl. Spray silicone lubricant onto
flush valve inside bowl and operate flush
pedal a few times to ensure free operation.
See winterizing procedure at the end of this
section to prepare the toilet for storage in freezing
conditions.
WASTE WATER SYSTEM
(HOLDING TANKS)
The drainage system is self-contained and
uses two separate holding tanks to contain the
waste water until it can be dumped at an appro-
priate waste water disposal site. This means you
can use the toilet, sinks and shower even in areas
where utility hookups are not available.
The main holding tank contains the sewage
from the toilet, and is commonly called the
black
water
tank. The second holding tank contains the
waste water from the galley sink, bathroom lava-
tory and shower, and is commonly called the
grey
water
tank.
The waste drain (sewer) hose has a handle and
valve as a sanitary convenience feature. The han-
dle makes the hose easier to carry when placing
into a dump site receptacle and when rinsing and
storing. The valve end reduces the chance of
dripping from the hose which could get onto
shoes or pants or inside the compartment.
NOTE: The dump valve drain outlet swivels
downward when necessary to avoid
bends in the drain hose which could trap
solids while dumping or to provide more
direct drainage while using on-site
sewer hook-ups.
Dumping Holding Tanks
1. Remove dust cap from drain and connect
drain hose. Be sure it is firmly attached.
2. Attach the drain hose and place head of
sewer hose into disposal opening.
NOTE: Open the hose end valve (handle) while
pulling the hose to the disposal opening
to avoid a vacuum lock condition which
prevents the hose from extending fully.
3. Unlock the hose handle and push it forward
to open the valve inside the hose head.
NOTE: Do not open the tank valves until the
hose valve is open. If you open the dump
valve before the hose valve, the hose will
fill with sewage and may clog in addition
to being difficult to move.