Regal 53 SC Owner's Manual page 412

Chapter 8
SHOWER SUMP PUMP- TYPICAL
ACCESS COVER
The shower sump pump shown above is used to collect
gray water waste from the sinks or the shower itself.
After the liquid reaches a designated height, the sump
pump energizes through a fl oat switch and exits waste to
a manifold then overboard. This system helps to protect
our water supply by not dumping used water overboard.
Periodically check the sump pump grate for debris such as
hair and soap build up. Check to make sure the automatic
fl oat operates freely at all times. Also, clean out the box
with a bleach/water solution as needed to kill bacteria. You
can back fl ush using the bleach/water procedure.
There are 2 shower sump pumps located on your vessel.
One is in the aft fl oor section of the main cabin. The
other is located at the forward center engine room fl oor.
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