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.