Outdoors RV Mountain Series Owner's Manual page 57

Plumbing Systems
To drain the water lines;
1. Turn off water pump.
2. Open all hot and cold low point drains.
3. Turn on all faucets.
For more complete direction on water system draining, refer to the 'Winterization' section in the
'Storage and Winterization' chapter.
Water Pump
The On-Board Fresh Water System requires a 12-volt water pump for operation. The water pump
provides water pressure at each fixture while dry camping without a pressurized city/park water
connection. It is also used during the winterization procedure for pumping RV anti-freeze into the water
lines to prevent freeze-up. This procedure is outlined in detail in the 'Winterization' section in the
'Storage and Winterization' chapter.
The water pump is self-priming and operates automatically when its switch is in the on position and a
faucet has been opened. When the water pump senses a pressure drop in the system it will begin to pump
water to maintain that pressure. Each first use after water lines have been drained, the water pump will
run continuously for a minute or so until the water lines are primed and fully pressurized. Additionally
when a faucet is opened it may sputter for a few seconds until all air is purged from the water line and
faucet.
The power switch for your water pump will be located on the systems monitor/control panel typically
found in a galley overhead cabinet. The water pump is typically located inside the base of the galley
cabinet behind a drawer or access panel.
Shown at the right is an example
of a water pump. On the right side
you will see the filter screen
identified. The pump assembly is
typically located beneath a drawer
in a galley cabinet. It may also be
accessible from a removable
panel on the side of the cabinet.
On fifth wheel models the water
pump is typically located behind
the rear bulkhead in the pass-thru
storage compartment, accessed
from a service door.
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