Anyone add a 2nd Bilge pump in the stern of their boat?

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Sdfish

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Hi guys, thinking about adding a 2nd bilge pump to my GW Adventure 208. Just as a safety precaution. Has anyone done this? Any pics of the set up?
In addition to the 1 rule bilge pump I do have in the boat, I have manual pumps on board.
I fish mostly offshore in So Cal - 20 to 50 miles.
What do you guys think?
 
I would try to put one forward if possible but yes a backup is a good thing to have.

Doing a retro fwd pump can be tough on smaller boats. I did it on a Wellcraft. Had to cut/reconfigure the center fish box but it was worth it.
 
SkunkBoat said:
I would try to put one forward if possible but yes a backup is a good thing to have.

Doing a retro fwd pump can be tough on smaller boats. I did it on a Wellcraft. Had to cut/reconfigure the center fish box but it was worth it.
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Thanks, I don't really how that could be done on my 208. I may be missing something though.
 
From pix of 208s I'm guessing there is space between the seats, between fuel tank and cabin door. There might be a second tank or water tank there though?
 
SkunkBoat said:
From pix of 208s I'm guessing there is space between the seats, between fuel tank and cabin door. There might be a second tank or water tank there though?
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Hi Lee - there are 2 hatches in front of the seats at the helm, these don't provide access to the center line of the boat though, they provide access to overflow hoses that drain the cockpit overboard. There is a small 1inch drain in the cuddy, which I suspect drains into the center line of the boat - I dont want to cut that up to install a hatch plate though.
 

Installing aft bilge pump

Bought a new bilge pump for my Overnighter and am having a tough time with the installation. This is my first Grady White but I've previously owned several ProLines and a Steigercraft or two. Because of Grady's deep deadrise it's a long way to the to the bottom and almost impossible to reach...
www.greatgrady.com www.greatgrady.com
 
I'd recommend making the second one a 'high water' or 'emergency' pump. This one would only need a float switch (makes wiring easy, too) and you would mount the float switch a few inches higher (an L-bracket/shelf attached to a stringer, for example) than the main pump. I'd also suggest making the emergency pump a higher GPH unit.
 
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That's what I was thinking Dennis, if I did the install it would be set up like that.
Is setting up a 2nd pump like this standard practice for a boat used offshore, or am I overthinking this?
 
Overthinking? No. While I don't know if I'd call it "standard" practice, it's certainly something that is common... and definitely can't hurt to do it!

Speaking of "overthinking" that really is NOT overthinking... Do you also have bungs/plugs/Sta-Plug/Stay afloat/toilet bowl wax ring - something like those things? Yes, I absolutely meant to type 'toilet bowl wax ring'!
 
yep - I do have a few rubber stoppers/plugs. I also think (thanks for the reminder!!) I have sta-plug on the boat. Thanks!
 
Consider adding a LOUD alarm that is activated by the second pump switch. That way you are aware of excessive water in the bilge.
I did this to my 1990 280 Marlin after my previous boat capsized 35 miles offshore because I didnt realize the bilge was flooded.
Every now and then you will hear the alarm for a second or two when running in heavy seas. But I have always found it comforting to know it was working.
 
theres a whole thread on this on THT and I'm sure plenty of info.
 
The most debated points in all these back-up bilge pump threads is, should the second pump be mounted higher, or just the second float switch is higher, and should it be switched.
Personally, I say mount them all as low as possible, it is not just a high water back up, it is also to back up a failure in the primary. It can't do that if the pump is mounted significantly higher. Mounting the second float switch just high enough that it doesn't come on every time the primary does is okay, but they all need a manual switch to turn them on, if needed. That would eliminate pumps with built in switches as a back up, for me.
I want to know every time a pump comes on, that means a light and/or an alarm at the helm.

This is probably the THT thread referenced above. An extreme case of how not to mount a second pump, IMHO.
www.thehulltruth.com

Bilge Pumps- Why stagger them - The Hull Truth - Boating and Fishing Forum

The Boating Forum - Bilge Pumps- Why stagger them - Wondering what is the logic behind staggering the bilge pumps, surely you wouldnt want it to reach the height of the second one before the backup kicks in. or is it to save wear and tear on one pump as backup ? or is that not a bilge pump..
www.thehulltruth.com
 
I will add my two cents: I added a second bilge pump in the stern of my Grady. I mounted it and its float switch about 3 inches higher than the other. Two reasons I think mounting it higher is better: one, it doesn't turn on all of the time and compete with the lower bilge pump, two, it rarely sits in water making it possibly last longer. Also if you can wire it to a different battery than the first one, you will eliminate a battery being a single point of failure for both bilge pumps. As an emergency high water back up, I think adding an alarm to the higher one is a great idea. If the higher one is coming on, something is not right and it is good to be alerted.
 
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I like the reasoning behind mounting the HW pump a couple inches higher than the regular pump simply to keep it out of the bilge "mess". But, a bilge really shouldn't be messy - cleaning the bilge is just part of boating. But it' still a good idea, none the less. The switch could be even higher, still - whatever you think is appropriate for when you want the HW pump to turn on.

And, yes, an alarm is a good idea - and very easy to do, too.
 
Again - thanks for the continued ideas on this, if I go this route - I will mount higher - not sure at this time him much higher - but 3-4 inches seems about right to me.
Dogbone which model Grady do you have?
 
Sdfish, I have a 1993 Gulfstream. It has pretty good access to the stern bilge area. 3-4 inches should keep it mostly dry, unless it is needed.
 
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