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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #11  
Old 05-23-2008
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TB-

A lot of bilge pumps were PO installed, and not manufacturer installed, and some PO's ideas of the proper way to do things is less than ideal.

I can think of a few reasons you might want to have a three-way switch instead.

For instance, if you have a maintenance level pump and want to test your emergency bilge pumps and their float switch, it might be nice to be able to shut off the maintenance level pump, which often has the switch installed at a lower height than the higher-volume emergency bilge pumps.

Max-on

You really should close that each time, when you leave the boat, since a hose failure could end up with your boat sitting on the bottom. Me, I still close the seacocks on my boat, and on my boat, if I took all the hoses off of them and opened them up, the boat wouldn't sink...
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  #12  
Old 05-23-2008
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Ok, now that I am looking at this whole thing, what size (GPH) should the pump be?

How long could a pump run on two group 31s?
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SD,
The electrical system on my Nauticat was virtually unchanged from the original electrical schematics contained in the owner's binder. The 3-way switch, float switch and pump were all OE.
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Old 05-23-2008
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Don't throw any bad vodoo at me SD! I do agree with you, it just needs an access port for convenience, the seacock is on the engine block behind the companionway.

Say the engine seacock hose is 1 inch OD, I do not think the pump could keep up anyways; hopefully someone would notice and make a call.

HEY, the two of you stay on topic, and stop arguing whose is bigger!

Another/next project is a solar panel. I have a plug on the stern as the PO used a windvane, and a switch in the boat. I do not know much about solar other than what I have read here; I do not think there is a controller though, which I think I would need, I also need a battery monitor.

Last edited by max-on; 05-23-2008 at 01:33 PM.
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I had a Rule 2000 bilge pump, which handles 33 gallons per minute. Although, most pumps are 800-1200 GPH, I wouldn't feel secure with anything less. Get the largest you can afford.

The downside of course, is a larger battery drain with higher amperage pumps.
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Max-

Something like this should work for you:



It draws about 7 amps at full blast... so would run about 35-40 hours given that a Group 31 wet cell battery has about 140 amp hours in it.
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Yes, I usually call when I see just a mast sticking up out of the water.

Quote:
Originally Posted by max-on View Post
Don't throw any bad vodoo at me SD! I do agree with you, it just needs an access port for convenience, the seacock is on the engine block behind the companionway.

Say the engine seacock hose is 1 inch OD, I do not think the pump could keep up anyways; hopefully someone would notice and make a call.

HEY, the two of you stay on topic, and stop arguing whose is bigger!

Another/next project is a solar panel. I have a plug on the stern as the PO used a windvane, and a switch in the boat. I do not know much about solar other than what I have read here; I do not think there is a controller though, which I think I would need, I also need a battery monitor.
Depending on the size of the solar panel, you may not need a controller... but that would be a maintenance charge level sized panel, rather than one that could recharge your battery banks. You probably want one that will re-charge your batteries as needed. An 80 Watt panel wouldn't be a bad fit. It'd replace about 30 amp-hours a day... and is about the minimum size panel that would require a charge controller on your boat.

For the battery monitor, get the Xantrex Link 20.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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Last edited by sailingdog; 05-23-2008 at 01:38 PM.
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Lifeline AGMs, SD, if I recall 105 amp/hrs. I am probably better off with the biggest pump that will fit the space and the current output hose, as if I ever 'need' the pump it will be because the boat is sinking, not because of a maintenance matter or casual use.


Thanks SD, that is one of the things on the list. I went for the assy spinnaker this year instead! Next, I need to look at the electronics, it all works, but I do not have wind speed, as the transducer is busted, I still have direction though, and as it is navico, I have not been able to find a replacement, I just go old skool.

Last edited by max-on; 05-23-2008 at 01:44 PM.
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Max-on-

BTW, If I wanted to jinx your boat, I'd ask my personal weather goddess to sink it.. She would too...

I wouldn't go with the biggest pump you can fit, since if the water is coming in that fast, even the biggest won't be big enough. I would recommend fitting a really high-volume manual pump or two... preferably one in the cockpit and one in the cabin.
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Telstar 28
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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  #20  
Old 05-23-2008
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SD, how many GPM will a one inch seacock flood the boat?
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