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Water can accumulate in the flexible hose and dump connector of the macera-
tor system. When winterizing the RV, antifreeze must be added to the macera-
tor system.
Winterizing the Macerator System (if so equipped)
1.
Ensure all tanks are empty.
2.
Pour RV antifreeze into the empty black water tank.
(Be sure to have a container available for capturing system fluid)
3.
Turn the macerator pump ON.
4.
Run the pump until antifreeze begins to discharge from the dump connector attached
to the flex hose.
5.
Turn the macerator pump OFF.
6.
Drain the flex hose by holding it at a sloped angle to remove excess water; return the
hose to the storage location.
7.
As an added safety measure, drain the macerator bypass valve.
When you are done adding RV antifreeze:
1.
Turn the water pump OFF. Turn siphon valve OFF. Remove the clear hose from the
container of RV antifreeze. Leave the water tank shutoff valve (Valve E if equipped)
closed to keep antifreeze out of the fresh water tank. See Water Heater Bypass Dia-
gram.
2.
Pour 1 cup of RV antifreeze into the sink drain P-trap.
3.
To prevent staining, wipe the RV antifreeze out of the sinks, shower (or tub) and toilet
using a soft, dry cloth.
De-winterize the macerator system: Emptying the black tanks in the spring will flush
antifreeze out of the macerator system.
NOTE: In the spring when flushing antifreeze out of the water lines make
sure to turn the water tank shutoff valve back ON. After flushing out water
lines the water filter should be re-installed.
Maintenance Record
Section 8: Plumbing System
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