Regal 26 FASDECK Owner's Manual page 246

Cosmetic Care & Maintenance
PUMP OVERBOARD DISCHARGE
If your boat is equipped with an overboard discharge
pump pay close attention to what materials are ushed
through the waste system as it could become clogged.
Do not pump garbage, rags, or sanitary napkins through
the overboard discharge pump (macerator). Flush the
waste tank and pump with fresh water with each pump
out. Do not run the pump dry or for extended periods
of time since the impeller can be damaged.
Pump the waste system out at decommissioning
time and rinse fresh water through the entire system
periodically to keep the hoses clean of debris especially
the pump out hose.
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