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Low Profile Bilge Pump

aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
in General Boating Discussions
Anyone ever see this bilge pump? I’m thinking about installing it at the lowest point in the bilge at the drain plug. The original will be a backup if this one ever fails. I can use a “Y” adapter and plumb it into the existing hose. Thoughts?

https://www.whalepumps.com/marine/product.aspx?Category_ID=&Product_ID=10002&FriendlyID=Supersub-Smart-Low-Profile-Automatic-Bilge-Pumps

”Y” adapter

https://www.go2marine.com/Rule-Pump-Adapters?gclid=Cj0KCQjwma6TBhDIARIsAOKuANwD2zzLVU2Mo7kpqkj8fvCGDidWZt203x3YEqrGNGw4CjXQ5q0_HMwaAoBzEALw_wcB
2008 330EC
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    Been looking at reviews on it and they aren’t the best……
    2008 330EC
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    YYZRCYYZRC Member Posts: 4,946 ✭✭✭✭✭
    I have a diaphragm pump with a hose that goes right into the garbord plug area to get that last bit of water out. Works perfect. 
    2008 350 EC on Georgian Bay
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    davidbrooksdavidbrooks Member Posts: 1,353 ✭✭✭✭
    I just use a small 2 1/2 gal shop vac.  The problem is that last bit of water also has other junk in it that would likely clog up the pump.  I actually just replaced my bilge pump.  One item i was going back and forth on was a fully automatic pump vs one with an attached float switch. I decided to go with the float switch.  The automatic ones turn on every two minutes to check for water and it gets a little annoying and it uses up battery.  The float does allow more water to build up but it will still work off of a switch manually at the helm.  I was also able to move mine back a little and get it to pick up more.  i also bumped up the size.  I went from 950 gpm to 1500gpm.  In this case bigger is definitely better.  Water shoots out the side now about 4ft.
    It's 5 O'Clock Somewhere!
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    YYZRC said:
    I have a diaphragm pump with a hose that goes right into the garbord plug area to get that last bit of water out. Works perfect. 
    I remember you installing that. I would like to have something that’s automatic. I like the idea of having 2 pumps incase one fails.
    2008 330EC
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    YYZRCYYZRC Member Posts: 4,946 ✭✭✭✭✭
    Yeah the diaphragm pump doesn’t move much water. 
    2008 350 EC on Georgian Bay
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    J3ffJ3ff Member Posts: 4,062 ✭✭✭✭✭
    Have used this one for a year or so, has been great having a super dry bilge.. https://www.amazon.com/SEAFLO-Dry-Bilge-System/dp/B07V4G41K4


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    davidbrooksdavidbrooks Member Posts: 1,353 ✭✭✭✭
    What blows me away is just how much water goes into the bilge from rain.  I am on a lift.  Can leave a boat that is perfectly dry and come back to one with 20 gal of water in it.
    It's 5 O'Clock Somewhere!
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    YYZRC said:
    I have a diaphragm pump with a hose that goes right into the garbord plug area to get that last bit of water out. Works perfect. 
    You ever think about adding a 12V timer to it? Would make it automatic. 
    2008 330EC
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    YYZRCYYZRC Member Posts: 4,946 ✭✭✭✭✭
    I bought one last year and didn’t install because my bilge was rarely wet! I solved virtually all of the leaks in the various fittings plus canvas. Worst offender was the fresh water hook up. 
    2008 350 EC on Georgian Bay
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    skennellyskennelly Member Posts: 2,196 ✭✭✭✭
    edited April 2022
    I also installed a diaphram pump and plumbed it to the sink drain.  I have it wired to the bilge pump so they both run at the same time.  Just to keep the bilge as dry as possible.  I love it.
    2002 - 270FV Mag 350 B3
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    edited April 19
    I think I’m finally going to get around to installing a second pump in the bilge. What size is the discharge hose on our Rinkers? Is it 3/4? I’m going to use a “Y” adapter to tie into the existing hose.
    2008 330EC
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    edited April 19

    Pump

    https://a.co/d/clSNeWf

    Adapter

    https://a.co/d/eeV6dc3
    2008 330EC
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    YYZRCYYZRC Member Posts: 4,946 ✭✭✭✭✭
    edited April 19
    @aero3113 wouldn’t the y cause some water to backflow to the other pump? I guess you are planning a high loop in the hose?
    2008 350 EC on Georgian Bay
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    @YYZRC I could put a high loop but the amount of water that would back flow would back flow even if I only had the one pump so doesn’t really matter. Both pumps are in the same bay the new one will be installed at the transom.
    2008 330EC
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    It’s probably smarter to just drill the hole and have two separate systems. 
    2008 330EC
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    FormulabenFormulaben Confirm Email, Member Posts: 68 ✭✭
    @aero3113 I too saw the mixed reviews/ratings on that pump but took a chance since I like how it fits down low.  I wanted a 2nd pump in the bilge anyway so it wasn't completely critical that it function perfectly.  Although it's only been one full season, it's performed flawlessly so far and was great for getting the water out from the low point due to my leaking hot water heater. 
    2006 Fiesta Vee 270
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    Waiting on the hose but will be wiring her up today. Looks like a perfect pump for the location. It will be nice to know that the boat has 2 bilge pumps installed.


    2008 330EC
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    YYZRCYYZRC Member Posts: 4,946 ✭✭✭✭✭
    @aero3113 you might consider putting an ABS or PVC tube from the garbord into the bilge area and then filling the half moon so that the transom wood is sealed off. I wanted to do that this spring after letting the transom dry all winter but didn’t get a chance. 
    2008 350 EC on Georgian Bay
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    YYZRCYYZRC Member Posts: 4,946 ✭✭✭✭✭
    This is what was recommended to me for the job - I have used it before and it is easy to work with. 

    System Three QuikFair Epoxy Fairing Putty

    2008 350 EC on Georgian Bay
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    LaReaLaRea Member, Moderator Posts: 7,587 mod
    Don’t wire both pumps to the same battery. 
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    edited May 16
    All, done. I have it tapped into the port trim pump. I’m pretty sure it’s not on the same battery as the stock pump, definitely not the same circuit. I also used a molex connector so I can unplug it when I want to fill and clean the bilge since I don’t have it wired to a switch. The wiring I used had a 15 amp fuse with a water tight holder, is 15 amp too much or is that good? I don’t see anything in the instructions stating the size fuse to use. The automatic feature is really cool, it comes on every 2.5 minutes for a second to sense any water.




    Post edited by aero3113 on
    2008 330EC
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    LaReaLaRea Member, Moderator Posts: 7,587 mod
    Longer explanation now that I'm at my computer.  If you're taking on water and you don't have a charger or alternators charging the batteries, you can double your run time by putting the pumps on different batteries.  

    I've never had multiple pumps before, but that's how my current boat is wired.  Each bilge has two pumps -- one on the house bank and one on the port starter.  
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    Since this low profile pump is going to be used in automatic mode, I don’t want to have it hooked up to a starting battery. I know it will take a long time to discharge the battery but it cycles every 2.5 minutes. I’m thinking, if I’m at anchor all day and don’t start or run the generator? 
    2008 330EC
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    aero3113aero3113 Member Posts: 8,864 ✭✭✭✭✭
    I can set it to turn on if it senses water at 1.3” instead of automatic but I think I like the auto option. 
    2008 330EC
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