Gray Water Drain System (If Equipped); Sump Box Cleaning; Sump System Winterization - Maxum 3100 SCR Owner's Manual

26 CHAPTER 6: PLUMBING

Gray Water Drain System (If Equipped)

• The gray water drains above the water line are gravity drained overboard
• The gray water drains below the water line drain into a sump pump box.
• A float switch automatically turns on the sump pump.
• The sump pump pumps the shower water overboard.

Sump Box Cleaning

Periodically clean the sump pump box (A), filter, and pump as follows:
1. Remove the cover screws (B) and the cover (C).
2. Remove any debris from the box and the filter.
3. Clean the sump pump as outlined in the Bilge Pump section of
this Supplement.

Sump System Winterization

Drain the sump pump system in the winter months when not in use.
1. Disconnect and drain all lines to the unit.
2. Remove the screws from the mounting feet (D) and drain the system.
3. Reinstall the screws in the mounting feet and reconnect the system.
1 2 3
1 COCKPIT SINK DRAIN
2 SYSTEM DRAIN THRU-HULL
3 MANIFOLD
4 HEAD SINK DRAIN
5 SHOWER DRAIN
6 FORWARD BILGE PUMP DRAIN
7 SUMP PUMP BOX
8 GALLEY SINK DRAIN
SUMP PUMP BOX IS ACCESSED THROUGH
FLOOR CUT OUT UNDER SALON ENTRY STEPS
A D
8
7
6
5
4
C B