Maxum 4100 SCB - Freshwater System Maintenance

24 Chapter 2: Components/Systems
4100 SCB Owner’s Manual Supplement
Freshwater System Winterization
To reduce the possibility of system damage due to
extreme weather (such as freezing), freshwater sys-
tems that have a city water inlet installed should be
winterized as follows:
Water Heater Pressure Relief Valve/Overboard
Discharge Hose Winterization:
1. Disconnect the pressure relief overboard discharge
hose from the water heater.
a. If water is present in the hose, the water heater
pressure relief valve is not working properly
and will need to be replaced. After replacing the
pressure relief valve, empty all of the water
from the hose before storing your yacht.
b. If no water is present, proceed to step 2.
2. Reconnect the hose to the water heater.
Transom Shower
Your yacht is equipped with a freshwater transom
shower, located inside the port transom storage tub.
Cockpit Washdown
The cockpit freshwater washdown is located inside the
port cockpit storage tub.
Sump Pump System
•
Gray water (water from sinks and showers) above the waterline is gravity drained overboard, while gray water
below the waterline is drained into a small holding tank that contains the sump pump and float switch (see drawing
on next page).
• The holding tank is located in the aft section of the utility room. When the holding tank reaches a predetermined
level, the tank’s float switch automatically activates the sump pump to empty the tank’s gray water overboard.
After the tanks are drained, the sump pumps are designed to automatically shut off.
• The shower sump pump and holding tank is located under the companion way floor hatch. The sump pump should
be periodically cleaned of debris and the float switch tested for proper operation according to the instructions out-
lined in the bilge pump and float switch sections of this supplement.
PRESSURE
WATER HEATER
OVERBOARD
RELIEF VALVE
DISCHARGE HOSE
TYPICAL VIEW
OF WATER HEATER
PORT TRANSOM
TRANSOM SHOWER LOCATION
AFT
STORAGE TUB
TRANSOM SHOWER
COCKPIT WASHDOWN
LOCATION
AFT
COCKPIT
FAUCET
WASHDOWN