Jayco Precept 2018 Owner'S Manual Download

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Section 8: Plumbing System

The shower faucet includes a vacuum breaker for the shower. There are two purposes for
this breaker:

To prevent siphoning water through the hose from another fixture.

To prevent water from being retained in the hose.

The showerhead DOES NOT have a complete shut-off valve (the complete shut-off is at the

faucet). The showerhead may drip slightly in the OFF position after use; this is normal and
does not indicate a leak or defect.

Maintenance

Refer the manufacturer’s user guide or label instructions for detailed cleaning information.
The tub/shower walls are made of ABS plastic material. Use a mild detergent soap and warm
water to clean. Do not use gritty or abrasive particle soaps or scouring compound to clean
ABS plastic. Avoid using “Citrus” or biodegradable cleaners which contain “D-Limonene.”
They will damage plastic materials. Contact your dealer for repair or replacement.

Black/Grey Water System and Tanks

Water from the sinks and shower flows into the gray water (or waste water) holding tank.

Water from the toilet will flow into the sewage (or black water) holding tank (see

Black/Grey

Water Holding Tanks).

Drain Pipes with P-Trap (If So Equipped):

The drain pipes may be equipped with a “P-trap” installed to help prevent odors from
escaping into the RV. During travel, water from the P-traps may spill and permit odors into
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. The waterless trap can be unscrewed from the water lines. A label has been placed
near the location of the waste valve that reads as follows:

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.

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

REMOVE WATERLESS TRAP BEFORE

USING MECHANICAL DRAIN – CLEANING DEVICES

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Maintenance Record