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26-03-2013, 06:01
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#1
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Registered User
Join Date: Mar 2013
Posts: 114
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Best bilge pump to keep the bilge as dry as possible
Does anyone have recommendations for their favorate brand of bilge pump that will both remove water at a high rate and keep the bilge as dry as possible (I'd like to find a pump that will suck up that last half an inch of bilge water).
I'm especially interested in pumps that have built-in float/water detection switches or that periodically run "just to make sure".
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26-03-2013, 06:04
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#2
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Senior Cruiser
Join Date: Mar 2010
Location: gettin naughty on the beach in cornwall
Boat: 63 custom alloy sloop,macwester26,prout snowgoose 37 elite catamaran!
Posts: 10,594
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Re: Best bilge pump to keep the bilge as dry as possible
i use my wet n dry vacum cleaner for the bilges of my aluminium boat.........
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26-03-2013, 06:11
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#3
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Registered User
Join Date: May 2010
Location: some ocean down under
Boat: Kelsall Suncat 40
Posts: 1,248
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Re: Best bilge pump to keep the bilge as dry as possible
We use a rag.
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26-03-2013, 06:17
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#4
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cat herder, extreme blacksheep
Join Date: Jul 2008
Location: furycame alley , tropics, mexico for now
Boat: 1976 FORMOSA yankee clipper 41
Posts: 18,967
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Re: Best bilge pump to keep the bilge as dry as possible
i use fullly automatic pump in my engine sump. it is never dry there...also is lowest place on boat..i wont dry it with a rag or sponge, as it is way deep.....so i have a lil water in my bilge.
if i wanted a fullly dry boat , i woulda sailed my ericson .... that boat has shallow dry bilges. and a fastass hull.....
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26-03-2013, 08:10
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#5
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Registered User
Join Date: Mar 2006
Posts: 1,594
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Re: Best bilge pump to keep the bilge as dry as possible
Quote:
Originally Posted by keelsidedown
Does anyone have recommendations for their favorate brand of bilge pump that will both remove water at a high rate and keep the bilge as dry as possible (I'd like to find a pump that will suck up that last half an inch of bilge water).
I'm especially interested in pumps that have built-in float/water detection switches or that periodically run "just to make sure".
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Those types will be the worse for getting the last 1/2 as they usually return water form the discharge hose after shutdown. And being an impeller type a one way valve won't work as the pump doesn't have enough ass to PUSH the valve open. The one way valve can only be installed after the pump hence the need to push the valve open.
What does work is a remote diaphragm pump with a one way valve type sump pickup. Since the one way valve is on the suction side the pump can suck it open and on shut off no water in the discharge line goes back into the bilge.
The other big benefit is that the diaphragm pump will pass just about anything without harm. The drop in impeller pumps quit working with the introduction of basically anything, hair, wood chips, bobby pins, etc. I've removed all of the above from non working drop in impeller type pumps on charter boats over the years.
After several trips to the boat to find my old drop in impeller pumps not working because of some kind of debris, I've gone over to a Jabsco remote diaphragm pump with a one way strum box in the bilge. In 6 years it's not needed to be touched and works every time. You will spend about 4-5 times the money to get it all done right, but what's your boat worth?
__________________
Randy
Cape Dory 25D Seraph
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27-03-2013, 19:41
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#6
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Registered User
Join Date: Jan 2009
Location: Tampa, FL
Boat: Yankee 30'
Posts: 211
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Re: Best bilge pump to keep the bilge as dry as possible
It is always a good idea to have two or three electric pumps. One can take care of keeping the level low, the other(s) deal with high volume. I use small 360GPH Rule or similar as a primary pump. I had some success with mounting a horizontal plate/skirt around the bottom of the pump to delay the moment vortex forms and the pump sucks in air. I plumb it overboard with semi rigid poly tubing that just happens to jam tight inside the outlet. The idea is that smaller tubing means less water returning to the bilge when the pump shuts down. It may reduce output, but who cares. For anything more than a trickle, the next bigger, #2 (#3?), pump kicks in.
Whale Gulper with a suitable strum box will pump the water even lower, but it would be difficult to get any automatic switch to operate it effectively. You'll keep the bilge drier by using manual switch and listening to the slurp when the small pump is done.
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27-03-2013, 19:48
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#7
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always in motion is the future
Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 18,956
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Quote:
Originally Posted by sv.antea
It is always a good idea to have two or three electric pumps. One can take care of keeping the level low, the other(s) deal with high volume. I use small 360GPH Rule or similar as a primary pump. I had some success with mounting a horizontal plate/skirt around the bottom of the pump to delay the moment vortex forms and the pump sucks in air. I plumb it overboard with semi rigid poly tubing that just happens to jam tight inside the outlet. The idea is that smaller tubing means less water returning to the bilge when the pump shuts down. It may reduce output, but who cares. For anything more than a trickle, the next bigger, #2 (#3?), pump kicks in.
Whale Gulper with a suitable strum box will pump the water even lower, but it would be difficult to get any automatic switch to operate it effectively. You'll keep the bilge drier by using manual switch and listening to the slurp when the small pump is done.
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+1 for Whale Gulper 220. Add a float switch and a timer solenoid so that you can program how long it keeps pumping after the float switch switches off again. Adjust by testing. The best suction tube is a piece of 3/4" PVC of which you cut the end under an angle so that you can stand it on thebottom of the sump/bilge while it will still be able to pump water.
This pump works so well because it can pump water, air and a water-air mixture. It is also extremely durableand reliable.
__________________
“It’s a trap!” - Admiral Ackbar.
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27-03-2013, 19:53
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#8
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Registered User
Join Date: Jan 2009
Location: Tampa, FL
Boat: Yankee 30'
Posts: 211
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Re: Best bilge pump to keep the bilge as dry as possible
To Jedi: good ideas, indeed. You got a make and a part # for a suitable 12V timer relay?
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27-03-2013, 20:15
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#9
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always in motion is the future
Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 18,956
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Quote:
Originally Posted by sv.antea
To Jedi: good ideas, indeed. You got a make and a part # for a suitable 12V timer relay?
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Raritan has one for their pheIII electric toilet which is what I use IIRC.
__________________
“It’s a trap!” - Admiral Ackbar.
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28-03-2013, 00:07
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#10
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Registered User
Join Date: Nov 2006
Location: Back in Northern California working on the Ranch
Boat: Pearson 365 Sloop and 9' Fatty Knees.
Posts: 10,469
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Re: Best bilge pump to keep the bilge as dry as possible
I'm wondering why the bilge needs to be so dry. Is it a shallow bilge? Mine is 4 ft. deep and contained to a 12" X 24" section
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming: Wow - what a ride!"
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28-03-2013, 00:40
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#11
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Registered User
Join Date: Sep 2009
Location: Marina del Rey, CA
Boat: Deja Vu - Catalina 36 MK I
Posts: 170
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Re: Best bilge pump to keep the bilge as dry as possible
You know all those free phone books that they drop on your doorstep and you keep throwing away? Keep a couple in your dock box. After your pump has gotten all it can, sit one on it's edge in your bilge and it'll suck up every last drop. THEN you can throw it away.
Mike
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28-03-2013, 07:42
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#12
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Registered User
Join Date: Nov 2006
Location: Back in Northern California working on the Ranch
Boat: Pearson 365 Sloop and 9' Fatty Knees.
Posts: 10,469
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Re: Best bilge pump to keep the bilge as dry as possible
Quote:
Originally Posted by MikeinLA
You know all those free phone books that they drop on your doorstep and you keep throwing away? Keep a couple in your dock box. After your pump has gotten all it can, sit one on it's edge in your bilge and it'll suck up every last drop. THEN you can throw it away.
Mike
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Finally...a use for hos damn things!
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming: Wow - what a ride!"
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28-03-2013, 08:03
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#13
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Registered User
Join Date: May 2009
Location: Panama
Boat: Steel trawler 63' Eileen Farrell
Posts: 961
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Re: Best bilge pump to keep the bilge as dry as possible
If you have water in your bilge, you have a leak somewhere. Fix it. It helps if you have a dry exhaust, keel coolers, and no through hulls. Put a container under your stuffing box to monitor the drip, if you like one.
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28-03-2013, 15:13
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#14
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cat herder, extreme blacksheep
Join Date: Jul 2008
Location: furycame alley , tropics, mexico for now
Boat: 1976 FORMOSA yankee clipper 41
Posts: 18,967
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Re: Best bilge pump to keep the bilge as dry as possible
some boats have wet bilges. taint no big thang,mon......there are packing glands for rudders and for prop shafts, and some even sail wet.
mine has a wet bilge and sails dry.
best bilge pump--scared man with a bucket.....
best bilge pump-----whatever actually works.
happy sails...
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31-03-2013, 15:47
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#15
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Registered User
Join Date: Feb 2013
Location: Ocala FL
Boat: 1979 Bristol 35.5 CB
Posts: 1,962
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Re: Best bilge pump to keep the bilge as dry as possible
Need two pumps-
Bigass 3700/400 with 2" smooth hose for when the shinola hits and a SuperSub 500 to suck down to the last 3/8", need to use a check valve to keep it dry. Do yourself a favor, forget the "runs for 5 seconds every few minutes" pump. YMMV but it drives me crazy.
__________________
John Churchill Ocala, FL
NURDLE, 1979 Bristol 35.5 CB
Currently hauled out ashore Summerfield FL for refit
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