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11 

SANITATION SYSTEM 

 

Marine Toilet 
 

All three heads are electric marine heads.  They must have the DC breakers turned 
on at the panel for each head.  In addition, the water pressure breaker must be 
turned on.  The head in the master stateroom has a special tank monitor which will 
indicate when the holding tank is ½ full and when it is full. 
 
It is imperative that every member of the crew be informed on the proper use of 
these marine heads.  The valves, openings, and pumps are small and will clog easily. 
If the head gets clogged, 

it is your responsibility!

  Always 

flush the head for small 

children

 so you can be certain of what is being flushed.  

Note: Never put in paper 

towels, napkins, sanitary products, household T.P., or food into marine heads.  

Use 

only

 

marine T.P. provided by SHYC

 

To flush forward and starboard toilets, Press the flush button.  You may add water to 
the bowl by pressing the upper button on the switch panel.  The toilet in the master 
stateroom is more advanced and will add water automatically as it is flushed.  Press 
the button and wait.  
 
A holding tank vent is located midship on the starboard side.  When using the head 
you may smell fumes from this.

 

 

Holding Tanks 

 
Your sanitation holding tanks holds 50 gallons.  Be aware of the rate of waste 
production (about 1 gallon/flush).  If you overfill your tank, you will break a hose, 
clog a vent, or burst the tank 

which is an indescribable catastrophe!

 And a very 

expensive fix for you.

  Empty the tank at least every other day to avoid any 

problems.  Monitor the tank level in the master head 
 
The holding tank is located in the engine room just forward of the engine.  There is a 
tank watch warning light located master stateroom head. But do not rely on this as 
they are subject to being inaccurate.

  

 
The holding tank is emptied in one of two ways: 
 
#1   At the pump-out station, remove the deck waste cap located on the portside 
just aft of the boarding door.  Insert the pump-out nozzle into the waste opening.  
Double-check that you have the right deck opening!  Note there are two water tank 
fill caps nearby.  Turn on the pump on the dock and open the valve on the handle of 
the hose.  When pumping is finished, close lever on handle and turn off pump.  
Remove from deck fill.   
 
If there is a fresh water hose on the dock, rinse the tank by adding water for 1-2 
minutes. Then re-pump to leave the tank rinsed and clean for the benefit of the next 
charterer.  This also eliminates any head odors. 
 
#2   

The tank’s contents can also be discharged at sea by using the 

macerator 

(Sealand pump).  To operate the macerator, open thru-hull located

 

in the starboard 

head through the opening in the bulkhead aft of the head and to the left of the 
washer.  Do not confuse it with the smaller thru-hull for the washer which is located 
slightly above the waste valve.  Turn on the macerator on the lower right bottom of 
the panel. Pump until pitch becomes higher indicating an empty tank.  This should 

Summary of Contents for Mary K

Page 1: ...the original owners who purchase the first of the 49ft Lord Nelson Victory Tugs made Only eight 49 s were made The hull design is based on a Maine lobster boat and was first applied to a 37 ft boat i...

Page 2: ...Systems Batteries Sanitation System 10 Marine Toilet Holding Tank s Water Systems 12 Fresh Water Tanks Pumps Hot Water Shower Galley 13 Propane Refrigeration Ice Maker Stove Oven Heating Systems 14 D...

Page 3: ...ished your inspection start your engine Ensure that Gearshift is in neutral or the engine will not start neutral lockout Insert the key into the ignition and turn it clockwise Turn the key clockwise u...

Page 4: ...the crew on what you will expect of them i e with lines and fenders There is a hands free intercom for two in the navigation station drawer Be sure to clip this on so you don t lose it overboard Whil...

Page 5: ...ch will lead to spillage out the vent particularly tanks 1 2 As the tank fills the sound will rise in pitch or gurgle Pay attention to the vent that it does not spill fuel into the water Top off caref...

Page 6: ...6 aid of the tool kept in the drawer on the starboard side in the aft end of the main cabin This tool is the same as the one used for the sea strainers...

Page 7: ...ft Also the control in the pilothouse will show the amount of rode released I like to lower the anchor a few feet from the deck switch and then use the inside controller while a crewmember monitors t...

Page 8: ...und the shore power electrical receptacle and off the bow i e wrap around bowline a few times turn the dock power breaker on On the boat turn the shore power switches to the proper position 1 is port...

Page 9: ...all battery switches are in position 1 See the labels for information On alternate settings Two battery switches are located on the port side of the access door on the front bulkhead in the engine ro...

Page 10: ...ly when at anchor Monitor your batteries very carefully The DC voltmeter on the DC panel can be switched between your battery banks to measure battery voltage Typically the bank should read from about...

Page 11: ...he tank which is an indescribable catastrophe And a very expensive fix for you Empty the tank at least every other day to avoid any problems Monitor the tank level in the master head The holding tank...

Page 12: ...Water Pressure breaker at the DC panel The pumps are variable flow and will continue to pump for a brief period after use as they raise the pressure to their cutoff point However if after use the pump...

Page 13: ...13 hoses Ensure that the faucets are tightly turned off after each shower to save water...

Page 14: ...the refrigerator when the engines are not charging the 12 volt system as when you are at anchor Use a cooler when possible for all your drinks to keep the refrigerator door closed as much as possible...

Page 15: ...ms will turn on and off on automatically The potable hot water will also be available The potable water heated with this system can be very hot Be cautious when running the hot water taps or shower Ch...

Page 16: ...displays the lat long If it does not it will not transmit your position in an emergency The radio transmits information to the AIS system All commercial craft can identify the Mary K and you can ident...

Page 17: ...tarboard side Extend the boom to the next to last position Be aware of the handrails while operating the crane The boom can jerk and move rapidly so think ahead Turn on the battery switch aft end star...

Page 18: ...nual to pump the bilge If you continually hear the bilge pump running check your bilge You may have a serious problem When in the engine room make a habit of looking below the engine at the aft pump I...

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