J/Boats J/109 Owner's Manual - Plumbing Systems
J/109 OWNER GUIDE
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Plumbing Systems
General
The plumbing systems in your J/109 consist of fresh water, manual and electrical pumps, and the head
(toilet). This section will describe their locations and how they operate.
Fresh Water System
Water Tanks: are flexible tanks. Connected to them are the following hoses: a) fill hose- is located on the
tank top and connects to the deck water fill pipe; b) feed hose- located along the tank bottom connects to
the water system at the water selection Y valve
Water Fills: are located on deck. Be sure the water cap threads are cleansed of dirt for a better seal. The
water may develop a “taste” after a long period of time. Instead of flushing it out you can add a commercial
water preservation agent, such as Sudbury Aqua Fresh crystals, to greatly improve the taste.
Optional Water Tank Selection Y-Valve: is located on centerline below the cabin sole. After the tank is
changed, open a water faucet to allow air to escape. When the water trickles out, close the faucet
momentarily to allow the pump to build up pressure (check that it’s turned on at the panel); then open the
faucet until a steady stream flows. It may be necessary to repeat the process several times to bleed all the
air from the system.
Water Pressure Pump: is located under the nav station. The pump operates off the DC electrical system
and pressurizes the entire water system. Should any problems arise, read its manual. If the system is not
pressurizing, first check that the pump is pumping water. Secondly, check that all hoses are securely
connected to their fittings. Thirdly, ensure all air pockets are eliminated as outlined above. If there is still a
problem, consult your dealer.
Water Heater: is located in the chaseway under the cockpit in the starboard cockpit locker. Water is heated
by either the engine or shore power. If the water heater is on shore power, be sure a continuous supply of
water is available to it, otherwise the electrical element within it will burn out. Due to this potential risk, water
heater elements are excluded from warranty. Thus, be certain the water pressure pump is always on and
there is adequate water supply while hooked up to shore power.
Thru-Hulls
All thru-hull fittings are of glass reinforced nylon or bronze. For safety reasons, we recommend that you
tape a soft wooden plug adjacent to all thru-hull fittings in the event of a hose or valve failure. These fittings
each have valve-handles. To reduce confusion, remember the long end of the handle indicates the
direction of flow.
Pump Systems
Pumps are easy to maintain and just as easily forgotten...they always happen to seize up when you need
them most. Consequently, take care to keep their screens clean and rubber gaskets/bellows working
correctly. Before taking a long trip, order replacement parts for all pumps.
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Sink Drain empties directly overboard through a thru-hull fitting beneath the sink.
•
Shower Sump Pump is locally operated in the head and drains into the head sink.
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Icebox Drain valve is located under the bilge board and should be closed to keep in the cold air
except when draining.