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Section 8: Plumbing System
Never leave the black tank drain in the open position continuously when
connected to the campground sewer system. Leaving the drain open will
allow the liquid to drain out increasing the potential for a blockage in the
tank. Keeping the drain in the closed position will prevent debris from
accumulating in the tank.
Do not add automotive antifreeze or caustic chemicals, such as laundry
detergents, into the holding tanks. Although these products may have a
deodorizing effect, they may damage the plastic and rubber parts of the
plumbing system or the components
Black and Grey Tank Drains
There are labels on the exterior of the recreation vehicle indicating the location of the grey
and black tank drains (also called dump valves). Always drain the black water holding tank
first so the grey tank wastewater can help rinse any solids or debris from the dump outlet
and sewer hose.
1. To make drainage easier, level the RV.
2. Remove the sewer hose housing dust cap and attach the sewer hose (customer sup-
plied).
3. Place the end of the sewer hose into the approved dump station.
4. Open the black tank dump valve (depending on your
model the valve may be located under the RV, or on
the utility center). Close the dump valve when the
black water holding tank is empty.
5. Open the grey tank dump valve (depending on your
model the valve may be located under the RV or on
the utility center). Close the dump valve when the
grey holding tank is empty.
6. Remove, clean and store the sewer hose.
7. Close the sewer hose housing dust cap.
You can locate dump stations throughout the United States and Canada in Woodall’s, Rand
McNally Camp Guide, Good Sam Camp Guide, KOA Kampgrounds Camp Guide and vari-
ous other publications. Some fuel stations also have dump stations.Please contact your RV
dealer for assistance in the purchase and installation of a sewer hose or sewer hose extension
(if needed).
Sewage (black) tank preparation
1. Release one to two quarts (1 or 2 liters) of water into the toilet bowl.
2. Follow the directions on your RV-approved toilet chemical bottle (customer supplied)
and put the recommended quantity of holding tank chemical into the toilet bowl.
3.
Flush the toilet and allow at least two gallons (8 liters) of water to flow into the holding
tank.
It is important to add enough water to prevent solid waste buildup. Follow the
directions listed below and in the manufacturer’s operator manual.
Black/Grey Tank Drain and
Valves
Table of Contents
Maintenance Record
Summary of Contents for Precept
Page 1: ...2021 Owner s Manual 0230295 2021 A subsidiary of Thor Industries Inc...
Page 2: ......
Page 8: ...Table of Contents...
Page 23: ...21 Section 1 Warranty Service Table of Contents Maintenance Record...
Page 24: ...22 Section 1 Warranty Service Notes Table of Contents Maintenance Record...
Page 34: ...32 Section 2 Occupant Safety Notes Table of Contents Maintenance Record...
Page 40: ...38 Section 3 Pre Travel Information Notes Table of Contents Maintenance Record...
Page 156: ...154 Section 13 Exterior Notes Table of Contents Maintenance Record...
Page 160: ...158 Section 14 Travel Camping Storage Checklists Notes Table of Contents Maintenance Record...
Page 164: ...162 Section 15 Additional Information Notes Table of Contents Maintenance Record...
