Using The Water Supply - Generac Power Systems MAGNUM MTT15 Operating Manual

4. Turn the Control Power switch to the OFF (O) position.
CIRCUIT BREAKERS
Note: For extended storage time, disconnect the battery. For extended storage requirements, refer to the engine
operator's manual.

USING THE WATER SUPPLY

NEVER use water in the supply tank for human consumption, even if the water is potable.
The tank is made to store water for washing or domestic purposes only, drinking water from
The unit comes equipped with a 500 gallon (1,895 L) water tank and a manifold with four hose bibbs. This allows
the water tank to be connected to a trailer or RV for water to be used in non-potable applications. Two bibbs are for
gravity feed only and two bibbs are pressurized by the onboard pump; the pump only operates when the engine is
running.
TO USE THE PRESSURIZED WATER SUPPLY BIBB(S):
1. Connect a hose from one of the pressure hose bibbs
to the end location (trailer, RV, etc.).
2. Start the engine.
3. Switch the main circuit breaker to the ON (I) position.
4. Open the pressure hose bibb(s).
5. Switch the pump on; it will stop automatically when
the water pressure reaches 35 psi (241 kPa).
TO USE THE GRAVITY WATER SUPPLY BIBB(S):
1. Connect a hose from one of the gravity hose bibbs
to the end location.
2. Open the gravity hose bibb(s).
Drain the tank when the temperature is expected to drop below 32°F (0°C) or if the unit is
TO REFILL THE WATER TANK:
1. Close all hose bibbs.
2. Remove the tank cover; leave the smaller inspection cap in the center of the cover in place.
I I I I
O O O O
CAUTION
the tank could result in immediate or long term harm.
to be stored for a long period of time.
CONTROL POWER SWITCH
OFF
GLOW
RUN
PLUG
START
Pressure
Gravity
Bibbs
Bibbs
Pump
Switch
00925
00229
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