Jayco SENECA 2023, Owner'S Manual

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Section 8: Plumbing System
4. Low point drains are installed at the lowest point of the water
lines. A label is placed on the outside of the RV to indicate
where the drains are located. The type of drain may vary
by model. You will have either an interior or exterior drain.

Interior drains: the drains will need to be operated from
inside the RV. Once the label is found on the exterior
sidewall, the drains will be found at a corresponding lo-
cation in the interior.

Exterior drains: Open the “low point drains” by removing
the black screw on caps on the water lines (coming out from the underbelly). The
drains will typically need to be opened from outside the RV.
5. Drain the sink by removing the drain cap.
6. Turn ON the water pump and allow it to run as needed.
7. Open all faucets, including the outside shower faucet. Make sure the “water heater
bypass” valve is open.
8.
Operate the toilet flush lever until water stops flowing.
9.
If the RV water heater has bypass valves, set them to the BYPASS configuration (refer
to the
Water Heater Bypass
section).
10. Relieve the water pressure using the P&T valve BEFORE removing the water heater
drain plug. If there is any water pressure present, the water will spray out of the open-
ing when the drain plug is removed.
It is normal for some liquid to remain in the fresh water tank after drainage procedure.When
you are finished draining the fresh water system, reverse these steps and, dump the grey and
black water holding tanks at an appropriate facility or according to local public codes.
Low Point Drains
Uni-Dock Utility Center
The Uni-Doc Utility Center
is located in an exterior compartment and allows you to per-
form the following functions:
 Power fill the fresh water tank for remote or dry camping
 Use the pump to supply water to fixtures from the fresh water tank
 Use the pump to siphon fill or sanitize the fresh water tank from a container
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