Jayco Seismic 2021 - Using the Uni-Doc utility center; “POWER FILL TANK” (Pressurized fresh water source);

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4. Open the “low point drains” by turning, then pulling the handles
up. They are installed at the lowest point of the water lines. A la-
bel is placed on the outside of the RV to indicate where the drains
are located. 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 location in the interior.
5. Drain the sink by removing the drain cap.
6. Turn ON the water pump and allow it to run as needed.
7. If the RV water heater has bypass valves, set them to the BYPASS conguration (refer
to the Water Heater Bypass section).
8. Operate the toilet ush lever until water stops owing.
9. 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.
When you are nished draining the fresh water system, reverse these steps and dump the
grey and black water holding tanks. It is normal for some liquid to remain in the fresh water
tank after drainage procedure.

Uni-Dock Utility Center (if so equipped)
is located in an exterior compartment and allows you to per-
form the following functions:
 Power ll the fresh water tank for remote or dry camping
 Use the pump to supply water to xtures from the fresh water tank
 Use the pump to siphon ll or sanitize the fresh water tank from a bucket
 Connect to city water at the camp site to supply water to RV xtures
 Winterize the plumbing lines and xtures
 Bypass the hot water heater when winterizing to avoid damage to the water heater