183
MONTEREY
BOATS
Seasonal Maintenance
• Remove cushions, open as many locker doors
as possible. Leaving as many of these areas
open as possible will improve the boat’s ven-
tilation during the storage period.
NOTICE:
It is recommended that a mildew preventer
be hung in the head compartment or cabin
before it is closed for storage.
• Clean the exterior upholstery with a good vinyl
cleaner and dry thoroughly. Spray the weather
covers and boat upholstery with a spray dis-
compartments, storage locker areas, etc.
should also be sprayed with this disinfectant.
14.2 Winterizing
Fresh Water System
The entire fresh water system must be completely
drained. Disconnect all hoses, check valves, etc.
and blow all the water from the system. Make
sure the water heater and fresh water tank are
completely drained. Use only very low air pres-
sure when doing this to prevent possible system
damage. Because of the check valve mechanism
built in the pump, blowing the lines will not remove
the water from the fresh water pump. Remove
the inlet and outlet hoses on the pump. Turn the
pump on and allow it to pump out any remaining
water (about a cupful).
A recommended alternative to the above-men-
tioned procedure is the use of commercially avail-
able non toxic, fresh water system antifreeze.
After draining the potable water tank, lines and
water heater, pour the antifreeze mixture into the
fresh water tank, prime and operate the pump un-
Be sure to open all hot and cold water faucets,
including the fresh water shower in the cockpit and
the faucet in the wet bar. Make sure antifreeze
and the ice maker supply line.
The shower drain water sump system must be
properly winterized. Clean debris from the drain
clean water. After the system is clean, pump
the drain sumps as dry as possible. Then pour a
potable water antifreeze mixture into the shower
drain until antifreeze has been pumped through
the entire system and out of the thru-hull. Fol-
low the same procedure for the optional grey
water sump system. Pour the antifreeze for the
grey water sump into the cabin sink drains until
antifreeze has been pumped through the entire
system and out of the thru-hull.
For additional information refer to the Fresh Wa-
ter System chapter. Also, refer to the ice maker
owner’s manual for information on winterizing
the ice maker.
Engine and Optional Generator Raw Water
Systems
Drain all of the sea strainers, heat exchangers
and raw water supply and discharge lines for the
engine and generator raw water supply pumps.
Make sure all seawater has drained from the ex-
could have a drain plug that must be removed to
-
plished, pour a non toxic marine engine antifreeze
mixture into a large pail and put the engine raw
water intake lines into the solution. Run each
engine one at a time until the antifreeze solu-
tion is visible at the transom exhaust port or the
propeller exhaust hub, then shut the engine off.
NOTICE:
Properly winterize the engines and fuel sys-
tem by following the engine manufacturer’s
winterizing procedures located in your en-
gine owner’s manuals or contact a Monterey
dealer.
Refer to the Raw Water System chapter for ad-
ditional information on the raw water system.
Portable Head
The portable head must be properly winterized by
following the manufacturer’s winterizing instruc-
tions in the portable head owner’s manual.
Marine Toilet
The marine toilet must be properly winterized by
following the manufacturer’s winterizing instruc-
tions in the marine toilet owner’s manual. The
fresh water supply will be winterized with the
fresh water system. Drain the discharge hoses
completely turning off the fresh water supply so
times. The head holding tank and macerator
discharge pump must be pumped dry and three
gallons of potable water antifreeze poured into
-
ting. After the antifreeze has been added to the
holding tank, open the overboard discharge valve
and activate the macerator pump (if your boat is
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