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It’s time for me to replace the aged manual bilge pump on Lady Leanne. While sorting out the options for a back up—back up, I considered rigging a y valve on the intake to the v drive. The y would have a hose to the bilge with a strainer on the end. If sea water came in fast enough for me to pass water, I would simply open the y, cut off the raw intake and let the engine pump it out. Obviously this would be “last resort”, but it is a big ocean out there.
Any holes in this planning?
Dan Kalinowski
Lady Leanne (#135)
Honolulu -
I don’t think I’d do it. If you are taking water that bad, why put the engine cooling system at risk by pumping bilge water and small debris through it??
If the engine runs, you still have electric, so add a second electric bilge pump. You could add an independent engine drive pump, but they are pricey. Carry a bucket.
Quent -
Hi Dan,
No, there are no real holes in the planning except this: your engine doesn't pump that much water. It looks like a lot, and if you're really sinking, there's going to be a lot of trash in the bilge which will end up over the strainer or if small enough, plugging the heat exchangers. I've often thought about this and have two manual bilge pumps (one in the cockpit, one in the hanging locker forward of the head) and two electric bilge pumps and the macerator pump that can be lined up to pump the bilge. The engine is far better off as a source of power until under water than it is a bilge pump.
But that is my conclusion. Yours may differ.
Regards,
Bob
On Fri, Jul 31, 2009 at 2:41 AM, kalinowski < ([email][/email])> wrote:
It's time for me to replace the aged manual bilge pump on Lady Leanne. While sorting out the options for a back up—back up, I considered rigging a y valve on the intake to the v drive. The y would have a hose to the bilge with a strainer on the end. If sea water came in fast enough for me to pass water, I would simply open the y, cut off the raw intake and let the engine pump it out. Obviously this would be “last resort”, but it is a big ocean out there.
Any holes in this planning?
Dan Kalinowski
Lady Leanne (#135)
Honolulu—
Bob Fine
s/v Pelican
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Don,
I’m a big believer in finding ways for equipment to serve more than one purpose on a boat. Yours is an idea that has been around for a long time and it might be worth doing, but there is some risk. If the bilge strainer becomes clogged with debris – a possibility when a boat takes on a great deal of water – and you’re too busy with the situation at hand to notice, then the engine could overheat even to the point of seizing. I do plan to put in an intake Y-valve for the manual holding tank pump-out pump, so that a crewman could put it to good use removing water from the bilge. In addition, if you have deck washdown and/or macerator pumps installed, they, too, could double-function this way. If your boat is ever taking on that much seawater these back-up systems could make all the difference, buying you time to find and close the source of the flooding.
There’s much to be said for a scared man standing knee-deep in water with a bucket in his hands, too.
Tor
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Silver Heels, P-424 #17
http://www.SilverHeels.us
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The problem with the scared man scenario is that you have to carry a spare against the chance of disaster. I suppose, though, it's like a life raft in that you have one but you don't want to use it. I recommend a smallish spare man so that when you have company you can keep him under the floorboards….
Bob
On Fri, Jul 31, 2009 at 9:18 AM, Silver Heels < ([email][/email])> wrote:
Quote:Don,
I'm a big believer in finding ways for equipment to serve more than one purpose on a boat. Yours is an idea that has been around for a long time and it might be worth doing, but there is some risk. If the bilge strainer becomes clogged with debris – a possibility when a boat takes on a great deal of water – and you're too busy with the situation at hand to notice, then the engine could overheat even to the point of seizing. I do plan to put in an intake Y-valve for the manual holding tank pump-out pump, so that a crewman could put it to good use removing water from the bilge. In addition, if you have deck washdown and/or macerator pumps installed, they, too, could double-function this way. If your boat is ever taking on that much seawater these back-up systems could make all the difference, buying you time to find and close the source of the flooding.
There's much to be said for a scared man standing knee-deep in water with a bucket in his hands, too.
Tor
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Silver Heels, P-424 #17
http://www.SilverHeels.us
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Only you would think of that, Bob.
🙂
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Well, I mean, really. If I'm steering the boat or whatever, I'd need a scared man to dewater. Now that I think of it, he'd have to be a jerk, too, because if I fell in the water, I'd need him to pull the tab on the life preserver (the tag says, “Jerk to inflate”).
So, that's getting a dual use from the one scared man.
Hahahahaha!
Bob
On Fri, Jul 31, 2009 at 9:29 AM, Silver Heels < ([email][/email])> wrote:
Quote:Only you would think of that, Bob.
🙂
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Anyone know of a cheaper but equally high qualityhigh GPM as the Edson manual pumps?
http://www.edsonmarine.com/marinestore/index.php?main_page=index&cPath=83_185
They are designed so you can stand in the cockpit, steer and pump with one hand (i.e. they have a board to put your foot on and a long handlehoses).-p
s/v Deep Playa | Pearson 424 #152 | http://www.DeepPlaya.com<.. snip>
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Owners no more...
Thanks Dawn and Patrick! -
Patrick-
One nice thing about the Edson pumps is that they are high quality, overbuilt, and, if bronze, last forever. The used gear stores have them frequently much cheaper than new.
I have one in the basement that I bought for $100, and have yet to install. I’m thinking of mounting it on a piece of plywood same size as cabin sole hatch by the galley so that worst case scenario, I can hang onto the ladder to fwd companionway, pump and pray at the same time.
Maybe make a special short handle for the small bilge jerk.
Quent -
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For those who carry a small 110 generator ( like a Honda) consider a 110 volt submersible septic pump for emergencies.
Put a 15-20′ 2″ exhaust flexpipe on it and stow it for emergencies.
Huge capacity ( 7800 gal/hr) (=ten bilgepumps) and less than $300
This will move some bilgewaterFor example:
http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200352038_200352038
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