Advice on bilge pump placement

Aug 12, 2014
214
Universal Marine Montego 25 San Pedro, CA
Hello all,

I did some searching on the topic but I couldn't really find what I was wondering about, so here goes.

We recently purchased our first boat, a Universal Marine Montego 25. It is a 1983 model, and has an outboard though it looks like it had an option for an inboard diesel.

Anyway it's a great boat and we've been having fun with it. However, it does not have a bilge pump and this is required in order to pass the inspection to move into a different marina nearby, and really I feel the boat should have one. Fortunately it is a very dry boat and it looks like it always has been.

It has a kind of tub as far as I can tell, that comprises the interior walls, settees, etc. In the salon floor, there is a little rectangular bit that lifts out to reveal what appears to be some sort of cement or resin that must encase the keel bolts. I can't tell really because it's hard as a rock and there isn't a lot of information out there about this manufacturer or this model in particular.

Anyway I thought I'd post a picture because that will help to describe it better. In the picture, I've tried to illustrate the individual compartments where water could potentially accumulate, due to the "tub" design and the fact that the salon floor and the settee's lower access doors would eventually run over into the lower areas in the boat. In the storage areas, I've noticed that some of the bulkheads between compartments necessarily have holes drilled through them for water lines or wiring, but not all are connected this way. Is it advisable to drill more holes in the bulkheads, which would allow for water to drain through and eventually out to the bilge pump?

I am thinking of putting the bilge pump in the aft part of the boat, because there is what looks to be a low-lying area that would be where water would gather, eventually.

It's all tough to describe, but basically there is no bilge to speak of, and so there is no good place for a bilge pump. In order to pass the inspection I will probably have to have it in the aft area, near the bit in green in my picture. I wonder if they will ask for another in the area beneath the V-berth, since there are a couple of through hulls there (I believe for the depth sounder and the speedometer paddle but I am not completely sure. The sink in the head's is also nearby). I've read that the whole point of a bilge pump is to remove rainwater and seepage and not to keep the boat afloat in the even of a dramatic flooding, so that makes me feel better about the location decision.

The areas I've shown in red are the compartments. Where the bulkhead is between the salon and the head there is about a five inch rise on the floor, similarly in the after section where the hatch is to the "engine bay" beneath the up-and-out ladder, which I drew in in blue (also on the image above). The green parts are probably the lowest parts of the hull's interior - the floor hatch above the cemented-in keel, and this small tubular structural piece near the transom in the back.

Any thoughts welcome ...
 

Attachments

Pat

.
Jun 7, 2004
1,250
Oday 272LE Ninnescah Yacht Club, Wichita, Ks.
Yes, you should have one and you are correct in that it's doubtful it could keep your boat afloat in the event of a catastrophic leak/failure. That said, I would ask the
marina parties about their specific requirements for a bilge pump and perhaps work with them on your specific boat as to the best location...I agree with the green outlined area, but many boats have what are called limber holes to allow bilge water to flow to the lowest point on a boat, i.e. from compartment to compartment.thereby reaching the lowest point in the bilge...but these bilge spaces can be very small and the limber holes themselves can become clogged. It may be that you do not have those depending upon the construction of the boat. Since this is their requirement, invite the official to your boat and discuss with them the opportunities....That will also impress them with your desire to comply with this requirement. Good luck !
 
Oct 3, 2008
325
Beneteau 393 Chesapeake Bay
Most marinas in our area require a Vessel Safety Inspection from the Coast Guard Aux., I believe this requires "de-watering" devices, not necessarily a bilge pump. A bucket and sponge or hand operated pump might be sufficient.
http://shop.catalinaowners.com/prod.php?16306
I am a CG certified Vessel Safety Examiner and a member of the US Power Squadrons. Both USPS and CGAux collaborate on these exams. What you state about the dewatering device is true ... to OPERATE the vessel. The marina requirement, which is not universal, might have other criteria for you to keep your boat there. I would guess that their requirement is not as specific as you would like; only that you have one. But check with them.

I don't know your particular boat, but I agree that placing the pump in the lowest area that could accumulate water is the best location. I also agree that most bilge pumps are not designed to keep up with a strong or catastrophic leak. They mostly are aimed at slower leaks like thru the stuffing box or from rainwater.

Good luck.
 
Nov 8, 2010
11,386
Beneteau First 36.7 & 260 Minneapolis MN & Bayfield WI
I also agree that most bilge pumps are not designed to keep up with a strong or catastrophic leak. They mostly are aimed at slower leaks like thru the stuffing box or from rainwater.

Good luck.
Exactly. The vast majority of circumstances that would cause a bilge pump to come on full time in an unoccupied boat will sink it; due to either the flooding rate overpowering the pump rate, or the boat batteries dying overnight.

I've never heard of a pump saving a boat like that. Seen lots of them sunk in their slips however.
 
Aug 12, 2014
214
Universal Marine Montego 25 San Pedro, CA
Thank you all for the replies. For the locals, I am looking to move to Shoreline in Long Beach. I think I'm going to have to suck it up and pay for a survey as well. I will call Shoreline again and just put the question to them.

That is interesting to hear about the limber holes. I may drill a few more for peace of mind.

I suppose in the unlikely event that one of the through-hulls sprung a leak or something at the dock, since the battery bank sits on the charger which is plugged into shore power, the pump would operate until it burned up, no?

This is all worth it to get out of our marina in Wilmington, where I have an hour's worth of motoring just to get out to where you can begin to sail. I have to say that I do love the facility where we are, and the people are great. I wish I could pick the whole thing up and move it out closer to open water.

P.S. - we definitely carry a manual emergency bilge pump similar to the Beckson that is linked to above. We generally have a couple of buckets too (since I have tons of room below, they are lightweight and they don't fit in my dock box easily).