Holiday Neptune 2004, Owner'S Manual

Page: 245 / 416

The waste drain system provides adequate and safe storage and/or discharge of
waste materials. The drain system uses ABS plastic piping and fittings connected
to sinks, shower, toilet and holding tanks draining to an outside termination. The
motorhome should be reasonably level for optimum operation of the systems. The
waste water holding system consists of a waste water holding tank (grey tank).
The grey water tank stores the sink, shower and clothes washer drain water. A
sewage holding tank (black tank) stores waste from the toilet only.
Drain valves and a tank flush system dispose waste through a common termination.
Each holding tank has a separate drain valve dumping the waste water (grey
water) and sewage (black water) through a common single discharge outlet. The
tank drain valves are located in the service center on the roadside of the
motorhome. Use the water monitor panel to observe tank levels. When ready to
drain the tanks, drain the sewage tank first. Next, flush the black tank with the
flush system. Drain the grey water tank. Using this sequence helps flush solids
from the sewer hose. When traveling, it is recommended both holding tanks be
empty or less than half full.
A flexible three inch sewer hose attaches between the termination drain and the
shore facility with sewage stations, and may remain connected. Sewer hoses usually
come in 10 or 20 foot lengths. The sewer hose is stored in a tube accessed through
a compartment door on the roadside next to the drain valves. The shore fitting for
the sewer hose may be three or four inch pipe, which could be male or female
thread. Another possibility may be a four inch pipe, with no threads, covered by a
metal plate. There are many configurations. Different style adapters are available
to fit most configurations. Hose ladders may also be purchased to support the hose.
It is important that the hose remains secure. Always tighten clamps and
restraining devices before use. Lay the hose inline between the termination outlet
and the shore fitting. Restrain the hose to prevent movement during use. Wear
protective and/or disposable gloves when handling the sewer hose.
WATER SYSTEMS --- SECTION 6 • 245 NEPTUNE 2004
6
Waste Drain &
Sewage Tanks
Waste Drain Hose
040422