Highland RIDGE RV, Owner'S Manual

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the RV. By adding water and using a RV approved deodorizing agent you will dissolve
the contents faster and will keep the drain lines and tanks clean and free flowing. These
chemicals are available at an RV supply store or your dealer.
Drain pipes With Dry Sealing Valve (If So Equipped):
Your RV may be equipped with a dry sealing valve that prevents the escape of odors from
your waste system and eliminates the need for P-traps. Should the RV drain piping system
become clogged and a mechanical cleanout tool is used to open the drain pipe, it is important
that the dry valve be removed before passing the cleanout tool through the piping. Passing a
mechanical cleanout tool through the waterless valve may cause damage to the internal seal
that may potentially allow sewer gases to escape into the RV interior. A label has been placed
near the location of the waste valve that reads as follows:
Vents:
Another important part of this system is the vent pipes and vents that release air from the
grey and black water holding tanks. On most models the exterior vent cap is attached to the
roof and must be kept clear of obstructions to perform as intended. On some models, the vent
pipe may be part of the drainage system referred to as a “wet vent” (water flows downward
as air flows upward in the same pipe).
Some models are equipped with a side vent system. On these models the following label
will be next to the termination valve. This label should not be removed from your recreation
vehicle.
Sewer Hose Storage:
Depending on your RV model, the sewer drain hose may be stored in an exterior compartment
marked “Sewer Hose” or it may be located in the hollow square tube bumper. The bumper
has removable plastic end caps, and the hose slides inside the hollow bumper.
REMOVE WATERLESS TRAP BEFORE
USING MECHANICAL DRAIN – CLEANING DEVICES
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When connected to the sewer drain line at a campground, keep the “black tank drain” valve
closed until the holding tank is at least ¾ full. This should provide sufficient water to assist
in complete draining of the black water holding tank. Repeat as needed. Never leave the
black tank drain in the open position continuously when connected to the campground sewer
system.
Traveling with the tanks full can affect your fuel consumption, and depending on the location
of the tanks, can affect your vehicle handling characteristics. If you are dry camping and
cannot immediately empty your holding tanks, reduce your vehicle speed until you reach a
dumping station.