WATER SYSTEMS

WATER SYSTEMS

The water systems on the boat may be logically divided into the following groups: fresh water, raw water, gray water, black water, air conditioning, bilge drains, and bait tank. The fresh water system may be sub-divided into hot and cold supply. All fresh water is plumbed with rigid plastic tubing. The hot water plumbing is red and insulated; the cold water is plumbed with blue tubing. The raw and gray water systems are plumbed with flexible hose and ABS pipe, the black water system is plumbed with white sanitation hose and PVC, and the bilge water systems is plumbed with clear plastic hose with green plastic reinforcement.

FRESH WATER

The fresh water system consists of two fills, a total of 800 gallons in a tank located under the master stateroom, a 1500 gallon-a-day water maker, AC and AC backup water pumps pressurizing an expansion tank and supplying hot and cold water. Filling is accomplished in one of three methods. The typical method is to supply water to the connector found on the forward bulkhead in the lazerette. This line runs through a flow meter, fine ceramic filter, taste and odor filter, UV light and into the water tank. The ceramic filter is rated for a flow of one gallon per minute. Give yourself time to fill! The second method is to use the water maker itself. The output of the system tees into the aforementioned plumbing at the UV light. The third method is to fill the tank directly from a deck fill located on the deck just forward of the port pilothouse door. The fresh water pumps and additional filters are located in the "pump room", forward of the port guest cabin. Access is made thorough the hanging locker. Between the water tank and the water pumps is a mesh screen filter. This screen should never have anything in it but should be checked on occasion anyway. The water pumps are plumbed in parallel. The starboard water pump is a 240V AC unit that runs directly off of the AC panel. The port pump is a 110V unit wired through the inverter. The pumps feed sediment and a taste and odor filters before the water flows into an expansion tank, then out into the hot and cold water systems. If water pressure takes a long time to build up or the volume is low, replace the filters. The expansion tank and water heaters are located on the starboard side outboard of the port guest head. Access is gained through the guest bath for the port guest room. Lift the mirror and strap it to the overhead and then tip out the shelf box and climb in.. The heaters are labeled #1 and #2 on the AC panel.

GREY WATER

The Gray Water System consists of a holding tank, associated plumbing, and a 24V DC pump. Water flows from sinks, showers, and the washing machine into the gray water tank and then is pumped overboard automatically. Automatic operation is discussed in the Tank Tender section of this manual. The gray water pump is located in the pump room, mounted on the aft bulkhead. This pump requires regular maintenance. There are inlet and outlet duckbill valves that wear out. If the pump should run for more than ten minutes or if the valves have not been checked in six months or more, check it out. The gray water holding tank is located in the forward section of the bilge under the port guest stateroom.

BLACK WATER

The head/black water system is based on a set of Royal Flush fresh water jet flush toilets, holding tank and pump. The tank is located in the after section of the mid bilge and the pump is located in the engine room in the aft starboard corner. The tank can be pumped automatically. See the Tank Tender section for a discussion of pumping. The gray and black water tanks are attached at the top, which will allow overflow from one into the other. The black water pump has been set up to double as an emergency bilge pump for the engine room. A valve located just inside of the aft door under the engine room sink swaps the pump pickup between the black water tank and a hose under the transmission. To run the pump manually you can use the rotary switch located on the panel just aft and above the engine room sink. This will also facilitate pumping the black water tank dry. A deck fitting is located under the sink in the cockpit for pump-out at a dock or to run fresh water back into the black water tank for flushing or for priming the pump. There is a three-way valve in the engine room, plumbed just before the black water pump which must be flipped to enable use of the deck pump-out.

RAW WATER

All raw water is supplied through the sea chest located in the port aft corner of the engine room. There are seven outlets off of the sea chest, each having their own valve and sea strainer. The supplied systems are: Main Engine Engine exhaust Engine cooling system heat exchanger Shaft bearing cooling/lubricating water Stabilizer cooling system heat exchanger Forward generator Aft generator Water makers Air-conditioner Thruster/Hydraulic system heat exchanger Cooling water for the hydraulic system has it's own sight gauge and discharge connected to the discharge sea chest in the starboard corner of the engine room.

WATER MAKERS

The water maker components are all located in the lazarette on the starboard side. Seawater is drawn through the sea strainer found close to the inlet sea chest and through the boost pump located by the lazarette hatch, then fed through a flow meter to the plankton filter and on to the pool style sediment filter. The high-pressure pump pulls water from there and sends it through the RO filters. Brine is dumped overboard and fresh water is fed through the UV filter into the water tank. Within the restrictions discussed in the water maker system manual, the unit is normally run at 850psi. The UV light is not automatically switched with the water maker. The switch for the UV light is in the light switch fixture next to the hatch. Now that there are two water makers the valving is somewhat more complicated. Starting at the lazarette bulkhead and running towards the water makers the valving is as follows: Watermaker plumbing diagram Shutoff valve isolating both water makers Shutoff valves at each boost pump Fresh water flush valve (to the right of the boost pumps) From the boost pumps the water flows through the systems and to two more sets of valves. These are located outboard on the forward bulkhead of the lazarette forward of the water makers. The Sea Recovery valves are the inboard valves, one red and one green. The Vantage valves are the outboard red/green pair. DO NOT turn on either water maker unless you have checked the valving and understand what is going on. If a system is turned on with any of the output valves shut the water maker WILL pop one or more hoses and possibly damage the RO membranes. The safest thing to do is leave all of the valves on the bulkhead open. Finally, after the red handled pair of valves (brine dump) there is a three-way valve that is used then cleaning or pickling the system. The output of this valve either goes overboard or feeds into the fresh water flush line aft of the water makers. This allows circulation of water within the system. After each use of the system the filters should be flushed with fresh water. When it comes time to pickle or clean the system there is an addition valve on the brine discharge line, mounted on the bulkhead above the UV light. This allows circulation of the cleaning or pickling solution. One additional complication is that there is no three-way valve on the fresh water output. When circulating cleaning solution or pickling solution the water maker systems will sense fresh water in the system and allow the solution to go into the fresh water tank. To prevent this, disconnect the wire to the three-way valve on each water maker. The Vantage unit's valve is mounted on the aft side of the control box, and the Sea Recovery unit's valve is mounted on the bulkhead.

 


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Electrical Systems

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