Bilge Pumps

September 2, 2014

Each hull has 5 separate compartments, completely isolated from each other.  Only electrical wires go from compartment to compartment, but these passages are high up on the hulls and sealed, and if water leakage becomes a problem through these fittings it is time to think of abandoning ship.

 

Aft Compartments

The last, aft compartments, with the rudder posts and the steering rams, have two hoses that go to the engine room entrance compartment, where each hose is connected to a manifold leading to the diaphragm pump and can be selected with the valves of the manifold.

An Aqualarm float switch with 4 wires leading to the bilge alarm panels on the corresponding side, above the fuel tanks.  These alarms are connected to and monitored by the NMEA 2000 network.

 

Engine Room Enrance

The engine room entrance compartments each have the following:

A Rule 1500 submersible pump with a Rule float switch.

A self priming Jabsco diaphragm pump connected to a manifold from which one can select from where the pump draws water: from the left or right side of the aft compartment or from a long movable hose that can be manually positioned anywhere in the entrance compartment or in the engine room.

An Aqualarm float switch with 4 wires leading to the bilge alarm panels on the corresponding side, above the fuel tanks.  These alarms are connected to and monitored by the NMEA 2000 network.

 

 

Engine Room

The engine room compartments each have the following:

A Rule 1500 submersible pump with a Rule float switch.

An Aqualarm float switch with 4 wires leading to the bilge alarm panels on the corresponding side, above the fuel tanks.  These alarms are connected to and monitored by the NMEA 2000 network.

 

Fuel Tank Compartments

The space above the fuel tanks do not have a pump since there is a small hole (10 mm) that drains directly into the engine room. 

 

Middle compartments

The middle compartments is where the generator, watermaker and air conditioning equipment is located.

The middle compartments each have the following:

A self priming Jabsco diaphragm pump with a long movable hose that can be manually positioned anywhere in the middle compartment.

 

Forward compartments

The forward compartments above a certain height are interconnected.

To remove any water the small portable12V Rule 500 bilge pump is used. 

In the event of a major disaster and the generator is still running use the Gardena 220V submersible pump.

 

Middle Anti Slam Nacelle

The middle, anti slam nacelle has 4 separate compartments.

 The aft section, situated under the middle hatch of the poop deck can be emptied from the engine room entrance with the hose of the self priming Jabsco pump.

 

Rule 1500 Submersible Pumps

Each submersible bilge pump has its own three way rocker switch on the bilge pump panel of the bridge, which lets you operate the pumps fully automatically or manually.

Pushing the top of the switch runs the pump momentarily.  This lets you test the pump or run it if the float switch has failed.  Turning the switch permanently on turns on the small LED above the switch (standby pilot light), indicating that the pump is in standby and if the water level rises the float switch will power the pump, until the water level goes down.

Whenever the pump operates the bright light on the switch turns on, thus enabling you to keep an eye on the pumps and consequently of your water leaks.

Bilge pumps electric diagram

The power to the pumps comes from the bilge pump breaker located on the hull panel of the corresponding side, above the fuel tanks.

Due to the rounded and narrow bottom of each hull a submersible pump can only pump out water down to a certain level, leaving a small amount of water in the bilge.  That water can be sucked out with the diaphragm pumps.

 

Self Priming Jabsco Diaphragm Pumps

Each Jabsco self priming pump has a switch on the bilge pump panel of the bridge that lets you turn on or off the power to a pump.  Whenever the power to a pump is on a small LED light above the switch turns on,

On the pump itself there is a switch to turn the pump on and off.

The power to the pumps comes from the bilge pump breaker located on the hull panel of the corresponding side, above the fuel tanks.

The pumps also have an inline strainer.  The problem with these pumps is that they do not tolerate any dirt, in which case they have to be disassembled.  Not difficult but tedious.  Also the inline strainers have to be cleaned frequently.  One more reason to keep the bilges clean.

 

Bilge Pumps Panel

The bilge pump panel to operate all the bilge pumps is situated on the bridge.

All the port bilge pumps are powered from the port hull branch circuit panel and all the starboard and middle nacelle bilge pumps from the starboard hull branch circuit panel.  Their corresponding breakers must be on for the pumps to operate. 

Refer to the DC electric system for more on the electrical circuits.

Procedures

In Harbor and Navigation

Always leave all the Rule 1500 submersible pumps on automatic.  All the red pilot lamps above each rocker switch must be on.   

 

Maintenance

Periodically and before each trip check that all the bilge pumps work correctly.  

Rule 1500 Submersible Pumps

Push the top of the rocker switch on the bridge panel.  The light in the middle of the switch must come on and the pump operate.  To check that the pump operates watch if the current consumption of the corresponding hull augments when pushing the top of the switch.  Then leave the pumps on auto and go to each pump and turn the float switch manually to operate the pump.

Check that the sump pumps and the float switches are free from dirt and the water strainers not clogged.

Self Priming Jabsco Diaphragm Pumps

Make sure that the rocker switch on the bridge panel is on.  Then go to each pump and turn each one on.  Make sure that the strainer is clean and the pump operates properly.

 

Equipment

Rule 1500 Bilge Pump 

The Rule 1500 bilge pump are rugged pumps that con be easily snapped off from their strainer bases for cleaning.  The pump itself has a vibration free centifugal impeller that won't burn out if run dry.  If necessarily the whole pump can be exchanged in a short time.

Compact, sleek and rugged, the Rule-A-Matic Plus Float Switch has a strong fully integrated, impact resistant cover, which protects against debris and jamming. New highly abrasion resistant wires exit the top keeping them out of the water and keeping wear and tear to a minimum. Dual level anti-clog water slots provide a unique level of performance and protection. Manual testing feature allows an operations check. 

 

 

6

Rule 1500 submersible electric bilge pumps Model # 02, 12V 4.8 A

 

The following manual provided by the manufacturer is also part of this section:

Rule bilge pumps manual

Rule Industries,inc.
Cape Ann Industrial Park
Gloucester, MA 01930
Phone: +1 978 281 0440
Fax: +1 978 2832619
www.rule-industries.com

 

Rule 500 Bilge Pump 

The Rule 500 bilge pump are rugged pumps that con be easily snapped off from their strainer bases for cleaning.  The pump itself has a vibration free centrifugal impeller that won't burn out if run dry.  If necessarily the whole pump can be exchanged in a short time.

2

Rule 500 submersible electric bilge pumps Model # 250, 12V .8 A

Rule Industries,inc.

 

Rule Float Switch 

Compact, sleek and rugged, the Rule-A-Matic Plus Float Switch has a strong fully integrated, impact resistant cover, which protects against debris and jamming. New highly abrasion resistant wires exit the top keeping them out of the water and keeping wear and tear to a minimum. Dual level anti-clog water slots provide a unique level of performance and protection. Manual testing feature allows an operations check. 

Handles 12V - 32V DC, 20A

The float switch must be positioned parallel to the vessel's water line with the wire exit toward the stern.  To assure positive shut off of the pump the switch must be mounted 6 mm higher than the base of the pump strainer.

There is a potential problem with these float switches since the wires, if submerged for a year or so, start leaking current.

 

2

Rule Rule-A-Matic lus Float Switch Rule # 40

Rule Industries,inc.

 The following manual provided by the manufacturer is also part of this section:

Rule Bilge Pumps and Float Switch

 

Aqualarm Float Switch

Heavy duty pump switch, 12 Volt

Aqualarm float switch

2

Aqualarm float switch Part No. 20090 PS-309-12

The Aqualarm wires are joined to a standard four wire cable in the following way:

Aqualarm PH8 wire  

Red

Green Battery +
Brown Brown Positive side of pump
Yellow Yellow Optional
Black White Battery -


The following manual provided by the manufacturer is also part of this section (it explains the use of the yellow wire):

Aqualarm Pump Switch Instructions

Jabsco Electric  Bilge Pump 

The diaphragm bilge pumps are self priming.


It is very important that a filter is put on the intake side of the pump.  Should some dirt go into the pump it is possible that the flap valves will no longer operate properly, disabling the pump.  In that case it is necessary to unscrew the four stainless steel bolts on top of the pump (3/8") and clean the valves.

The in-line strainer that come with the Jabsco pumps are small and difficult to clean and have been substituted by the Vetus Water strainer.  The Vetus strainer is bigger and easier to clean.  Just in case Vetus also sells the strainer itself and the cover as spare parts.

 

  The starboard pump before the engine room was purchased in April 2007.

The Vetus strainers for the pumps before the engine room were purchsed in 2014.

4

Jabsco electric bilge pump Model 3668-2 Series
2 Jabsco Pumpgard in-line strainer Model 36200-0000
2 Vetus water strainers, 19 mm hose connctors. Type FTR 140/19

 

The following manual provided by the manufacturer is also part of this section:

Jabsco electric bilge pump manual

 

Gardena Submersible Electric  Pump 

The Gardena submersible electric pump is meant as a last resort pump, to be used in conjunction with the generator.

It is powered by 220 V AC.

 

  The submersible pump was purchased in July 2008.

1

Gardena submersible pump Model 3668-2 Series

The following manual provided by the manufacturer is also part of this section:

Gardena Submersible Pump Manual

 

2014-09-02
cat_24_e bilge pumps.htm