12-Volt Demand Pump; Faucets - Jayco Greyhawk Owner's Manual

12-Volt Demand Pump

When water is desired and you are not hooked up to city water, you need to use the 12-volt pump to
get water from the fresh water tank. You will find the switch for the pump on the monitor panel or a
wall near the pump. The battery or converter will supply energy for the pump which will self-prime
and provide water. The pump continues to run until approximately forty pounds of pressure is
achieved and automatically starts again when pressure drops to twenty pounds. Some cycling in the
pump may occur, depending on the volume of water being released. A check valve is built inside of
pump to prevent water from flowing into the supply tank.
NOTE: For operation with Non-basement models, ensure that the valves are in the correct
position for your unit based on one of the methods below:
• Model 23RK: Make sure valves 1, 2, 3, 4 and 6 are closed and valve 5 is open.
(Fig. 4-5 & 4-6)
• Model 24SS: Make sure valves 1, 2, 4 and 6 are closed and valves 3 and 5 are
open. (Fig. 4-7)
To use the city water without the 12-volt pump, follow one of the following
methods appropriate to your vehicle:
• Model 23RK: Make sure all valves are closed. (Fig. 4-5 & 4-6)
• Model 24SS: Make sure valves 1, 2, and 3 are closed and valves 4, 5, and 6 are
open. (Fig. 4-7)
NOTE: The water pump switch should be in the off position when the vehicle is left
unattended for any amount of time. If something would happen to the water
system, this will ensure that water damage will be restricted to a small area.
I
CAUTION: Not using a water pressure regulator when using the city water fill may cause
the o-rings to blow. It is advisable to always utilize a water pressure regulator with the city
water fill.

Faucets

Bathroom or kitchen faucets operate the same as in your home. Open them by turning the knobs.
There may be air in the water lines which needs to be bled out. Close the faucets when sufficient
water is released.
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