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monitor panel. To check fluid levels, press and hold the test switch designated for
the tanks, and read the level indicators on the panel. The indicator is proportioned in
thirds with each indicator light illuminating to the level that the tank contains. Indicator
lights and their meanings:
The accuracy of two wire holding tank monitoring systems can be adversely affected
by dirty tanks or unusual mineral content in the water. These conditions can cause
the monitoring system to have oversensitive (reads higher than actual level) or under
sensitive (reads lower than actual level) readings.
Oversensitive readings can occur as a result of scum build up on the tank walls, or
abnormally high mineral content in the water. In these situations, the monitoring
system indicates higher levels than are actually present in the holding tank. Certain
cleaning products and food by-products can build up on the inside walls of the holding
tanks, producing a layer of scum that can cause the monitoring system to read higher
than the actual level. To correct this problem, the holding tanks should be cleaned
periodically (consult dealer for cleaning instructions).
Under sensitive readings can occur if the mineral content of the water is abnormally
low. In this case, the monitoring system indicates lower levels than are actually
present in the holding tank. This problem can be corrected by moving the ground
probe closer to the other probes.
The waste water system is comprised of dual holding tanks with individual termination
valves. The holding (solid waste) tank as indicated on your monitor panel, collects all
the waste material from the toilet. The gray water tank collects all of the liquid waste
material from the sinks, drains, and showers. Both tanks are joined together after the
termination valve to provide a single termination outlet for convenient dumping of
waste materials. A flexible sewer hose (which is not provided) is required to make the
connection between your unit's termination valve and the approved dump station inlet.
Note: On some models the sinks may be plumbed to drain into the black
tank instead of the grey tank.
The drainage system is very similar to that of your home. The system is trapped and
vented to prevent waste gases from entering your motorhome. The drain piping is
made of ABS material and is resistant to most chemicals. The "P" traps at the sinks,
showers and tubs are available for use as clean-outs if necessary.
Your vehicle's holding tank compartments are heated by the furnace duct work. It will
heat the tanks when the furnace is operating.
As mentioned previously, your holding tanks terminate together at one location for
convenience in dumping your tanks. A twist-on cap is located at the terminal outlet to
help prevent leakage of materials.
The holding tanks are enclosed sewer systems, and
must be drained into an approved dump station. Tanks
should be thoroughly drained and rinsed to prevent any
accumulation on the interior of the tanks.
1. Twist off the termination cap counterclockwise. Some liquid may be trapped
between the valves.
2. Connect the sewer hose by turning it clockwise, making sure that the connection
end levers are locked over the termination end.
Inaccurate Holding
Tank Level Readings
Oversensitive
Readings
Undersensitive
Readings
WASTE WATER
SYSTEM
HEATED HOLDING
TANKS
DUMPING THE
HOLDING TANKS
CAUTION
Water Systems
111
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