Fleetwood 1999 American Tradition Parts And Service Manual page 101

Since holding tanks don't rely on any sophisticated mechani-
cal devices for their operation, they are virtually trouble free.
The most common problem is also an unpleasant one -
clogging. You can minimize the chances of clogging by
keeping the following considerations in mind:
»
Keep the black water tank knife valve closed. Fill tank to at
least'!. full before draining. Be sure to cover the tank bottom
with water after draining.
»
Use only toilet tissue formulated for use in septic tank or RV
sanitation systems.
»
Keep both knife valves closed and locked, and the drain cap
tightly in place when using the system on the road.
»
Use only cleaners that are approved for use in septic tank or
RV sanitation systems.
»
Use a special holding tank deodorant chemical approved for
septic tank systems in the black water holding tank. These
chemicals aid the breakdown of solid wastes and make the sys-
tem much more pleasant to use. Do not put facial tissue, paper,
ethylene glycol-based or other automotive antifreeze, sanitary
napkins or household toilet cleaners in the holding tanks.
»
Do not put anything solid in either tank that could scratch or
puncture the tank.
If the drain system does get clogged:
»
Use a hand-operated probe to loosen stubborn accumulations.
»
Seriously cloggeciP-traps may require disassembly. Be careful
not to overtighten when reassembling.
»
Do not use harsh household drain cleaners.
»
Do not use motorized drain augers.
»
Sometimes the holding tank valve will get clogged. In this
case, a hand-operated auger may be necessary. Be ready to
close the valve quickly once the clog is cleared. If the seal
gets damaged, it is easily replaced.
AMERicAN
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PiUMbiNq SYSTEMS
HOLDING
TANK CARE