NORTHWOOD 2004 series Owner's Manual - page 18
18
WARNING: HOLDING TANKS ARE ENCLOSED SEWER SYSTEMS AND AS SUCH MUST BE
DRAINED INTO AN APPROVED DUMP STATION. BOTH TOILET AND GRAY WATER HOLDING
TANKS MUST BE DRAINED AND THOROUGHLY RINSED REGULARLY TO PREVENT
ACCUMULATION OF TOXIC MATERIALS.
It is recommended that you only dump the holding tanks when they are at least 3/4 full. If necessary,
fill the tanks with water to 3/4 full. This provides sufficient water to ensure complete flushing of waste
material into the sewer line.
DUMPING THE HOLDING TANKS:
1.
First make sure the dump valve is closed.
2.
Remove the sewer drain cap and attach the sewer adapter and drain hose to the dump
valve drain outlet. Place the other end of the drain hose into the sewer or dump station
inlet. Push the hose firmly far enough into the opening to be secure. In some cases
adapters may be necessary between the line and the inlet.
3.
Arrange the sewer hose so it slopes evenly and is supported to maintain the slope.
4.
Dump the black water holding tank first. Grasp the handle of the black water knife valve
(the large one) firmly and slide the valve open with a quick, steady pull. IMPORTANT:
Always open the dump valve with a quick jerk to give the desired flushing effect.
5.
Allow enough time for the tank to drain completely. Rinse and flush the tank and drain
hose through the toilet with a bucket of water or a hose. When the tank flow stops,
push the handle in to close the valve. Run enough water into the tank to cover the
bottom. This will aid the break up of solid wastes.
6.
When using a sewer hook-up system in a park, it is recommended to keep the dump
valve closed on the black water tank until it is full. T his will help prevent accumulation
of waste material that could clog the system.
7.
To dump the gray water tank, repeat the steps above using the small knife valve. The
gray water knife valve may be left open in a semipermanent hookup.
IMPORTANT: Do not dump both tanks at the same time. Also, it is recommended that you add
several gallons of water to each holding tank and dump a second time in order to thoroughly rinse
tanks and drain hose.
If solids become lodged in the tank, add water to the tank and drive the unit a few miles. The
vibration and motion should dislodge the solids. If an obstruction should remain, contact your dealer
or camper supply store for a suitable cleaning compound.
WARNING: SEWER DRAIN CAP MUST ALWAYS BE SECURELY
IN PLACE WHILE THE VEHICLE IS IN MOTION.