Jayco Greyhawk 2018, Owner'S Manual

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Section 8: Plumbing System
Low point drains
Exterior fresh water
drain
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 removing
the water heater drain plug. If there is any water pressure present,
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.
Utility Center
Water valve settings indicated on the utility center label:
City Fixtures
- Allows you to access water from all faucets using a pressurized water
source (referred to from here on as “city water”).
City Fill Tank - Allows you to fill your fresh water tank using city water.
Country Fill
- Allows you to siphon fill your fresh water tank (using the 12-volt water
pump) when you do not have access to city water.
Normal
- If the RV is not connected to city water, allows you to pump water from the
fresh water tank to all faucets using the 12-volt water pump.
Sanitize/Winterize Lines
– Allows you to sanitize or winterize the water lines.
Sanitize Tank
– Allows you to sanitize the fresh water
tank.
Depending on your model, the city water connections may
be configured one of three ways:
1.
A water valve control panel (Fig A)
. The City water
connection inlet will be located on the outside of
the motor home, and the pump switch inside on the
monitor panel.
2.
A horizontal utility center (Fig B)
. This utility center
contains the city water connection inlet, pump
switch, water valve controls, outside shower, black
tank flush inlet and a macerator discharge system.
3.
A vertical utility center (Fig C)
. This utility center
contains an outside shower, city water connection
inlet, black tank flush inlet, pump switch and water
valve controls.
Fig. A -Water Valve controls
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