THOR Jayco Precept 2021, Owner'S Manual

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Section 8: Plumbing System
Nautilus P3 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 bucket
 Connect to city water at the camp site to supply water to RV fixtures
 Winterize the plumbing lines and fixtures
 Bypass the hot water heater when winterizing to avoid damage to the water heater
 Rinse the black tank to help control odors and prevent waste buildup
 Rinse off items outside the unit with hot/cold faucet
 Connect up to (3) coax lines with satellite, cable and auxiliary
The city water connection inlet is located in the Uni-Dock utility center. Use a non-toxic
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
label 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
configuration (refer to the Water Heater Bypass section).
8. Operate the toilet flush lever until water stops flowing.
9. Relieve the water pressure using the P&T valve BEFORE remov-
ing the water heater drain plug. If there is any water pressure pres-
ent, the water will spray out of the opening when the drain plug is
removed.
When you are finished 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.
Low Point Drains
Exterior Fresh
Water Drain
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