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6. Drain the hose by holding it at a sloped angle to remove excess water, return hose to
the stored location.
7. As an added safety measure, drain the macerator bypass valve.
Emptying the black tanks in the spring will ush
antifreeze out of the macerator system.
1. Turn the water pump OFF. Remove the plastic hose from the container. Leave the
black valve pointing to the clear hose.
2. Pour 1 cup of RV antifreeze into all sink drain P-traps.
3. To prevent staining, wipe the RV antifreeze out of the sinks, shower (or tub) and toilet
using a soft, dry cloth.
This will allow water to be drawn out of the fresh water tank using the pump (after the tank
is full) and into the water lines.
Refer to the 6 in 1 Utility Center – 2 Valve System section. Make sure the low point drains
are open to ush antifreeze from the lines.
In the spring when ushing antifreeze out of the water lines
make sure to set the (2) valves at the pump to the NORMAL position.
Nautilus P2.5 Uni-Dock Utility Center
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
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