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  305 CONQUEST: Revision to Cockpit Drains

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Author Topic:   305 CONQUEST: Revision to Cockpit Drains
idler2 posted 01-19-2007 11:21 PM ET (US)   Profile for idler2   Send Email to idler2  
I have a 2005 305. I am disappointed in the drainage from the cockpit. Initially I got a lot of water in the main hatch. Boston Whaler denied a problem, but note the 2006 [CONQUEST 305] had new latches on the main hatch and fish box hatch due to leaks. I have retrofitted new hatches and gaskets and will see if that helps. I now note that the 2007 305 CONQUEST also has much more massive and better routed cockpit scuppers. I am annoyed that Boston Whaler denied the problem, then extensively redesigned a significant fix, and left earlier 305 CONQUEST owners with an expensive boat with poorly engineered cockpit drains. Any thoughts on fixes? My dealer said it is impossible to update the scuppers on 2006 and earlier Boston Whaler305 CONQUEST boats.
jimh posted 01-19-2007 11:58 PM ET (US)     Profile for jimh  Send Email to jimh     
[Moved from another discussion to the Post-Classic Whalers discussion.]
handn posted 01-20-2007 12:01 PM ET (US)     Profile for handn  Send Email to handn     
I have a 2004 305 Conquest. The cockpit drains drain somewhat slowly as they are hooked up to hoses and drain on the port and starboard sides and the water flow is not huge. A little water does drip into the bilge but not enough to run the bilge pump.

An early 305 Conquest recall was to design a cover for the generator as the salt water drip fried generators on the early models. I had to replace my fresh water pump as the first one didn't last long under salt water drip from the deck.

My port fish box leaks occasionally, usually from hosing the deck of when the boat is being cleaned. Most of the time it doesn't leak and I am trying to figure out why it leaks sometimes and not other times. That problem appears to have nothing to do with the slow cockpit drains.

On a couple of occasions, my 305 has been in huge seas and the bow pulpit has been stuffed in green water and lots of water ran into the cockpit from the walkaround deck. On those occasions, the cockpit drains worked fast enough to drain the cockpit out in a couple of seconds so they are more efficient than they first appear. If a piece of debris lodged in one of the drains or the hose became disconnected it would be a safety hazard. When cleaning my boat, I stuff the hose in the drains and make sure they are clear and hooked up.

I regard the slow drains and poor seals as a nuisance rather than a safety hazard. I appreciate idler2's suggestion to upgrade the seals and latches. That would be cheaper in the long run than replacing pumps and other machinery living in the bilge.

henryk posted 01-21-2007 12:01 AM ET (US)     Profile for henryk  Send Email to henryk     
I own a 2005 305 Conquest. I don't recall having any water problem all last summer. After a heavy rainfall, I would get some drops of water in the main center hatch, but nothing to be concerned with.

Some water may get into the fish boxes, but they always have some water in them, since it is not possible to get all the water out, through the drain itself.

henryk posted 01-21-2007 12:03 AM ET (US)     Profile for henryk  Send Email to henryk     
I own a 2005 305 Conquest. I don't recall having any water problem all last summer. After a heavy rainfall, I would get some drops of water in the main center hatch, but nothing to be concerned with.

Some water may get into the fish boxes, but they always have some water in them, since it is not possible to get all the water out, through the drain itself.

idler2 posted 01-21-2007 10:54 PM ET (US)     Profile for idler2  Send Email to idler2     
In response to HenryK, the fish boxes, once dried out and the plugs tightened should stay dry. I think the water over runs the channel between the fish box and the main hatch and ends up in the box, hence the new latches for 2006 on the fish boxes.
I got lots of water in the main hatch, including up under and around the water heater and batteries. Maybe I am too fussy, but I expect that bilge to be dry.
Also, there always seems to be some water around those cockpit drains in my boat.
Ricky posted 01-21-2010 11:01 AM ET (US)     Profile for Ricky  Send Email to Ricky     
My 305 2005 Conquest leaks water in through the cockpit seal into the bilge. I have just replaced Halon Fire suppressor ($350) because the tank had rotted out and notice hot water tank is rotting from sitting in water also. This was discussed in earlier threads but no real solution was given. Seal material looks good to me- resilient and flexible. Latches require some force to latch so they are compressing seal material although port side could be tighter.

Are other owners replacing seal, latches, living with it? I really would like this area to not have salt water or soapy water falling on it.

Separately, my cabin port hole windows were leaking so I tightened the latch screws and noticed a small set screw in the window latch that pushes directly on the glass. Never noticed small set scews before(old eyes). End of leaks.FYI

SouthFla posted 01-22-2010 04:26 PM ET (US)     Profile for SouthFla  Send Email to SouthFla     
Well, finally I don't feel alone :-)

I posted last year when we bought our '05 305 Conquest regarding all the leaks and the horrible scupper drainage and design.

From my conversation, Boston Whaler denied any problem with the scuppers, but as you mentioned you can see how they're redesigned in later models...Mine always have water pooling in them, and when washing the boat water drains very poorly from the cockpit and always has standing water in it.

Additionally, I've tried 5+ different hatch tapes to seal the fish boxes, which ALWAYS filled with water when washing the boat. I'm using a Home Depot brand tape now which is keeping water out.

My bilge is "relatively" dry, but like some of you there's some water drops on the battery boxes, and the area around the water heater is often damp. It might be a slight heater leak, but I think it's leaking from the panel overhead and forward of the bilge hatch, but I'm not 100% sure. When I open the bilge hatch water standing in the back by the scuppers drains into the bilge :-(

I've also added more weatherstripping tape to the cabin ports which were leaking, and so far they've remained dry.
I think all the leaks are just something we have to mitigate as best as possible and put up with. Oh well...

JIGS posted 01-26-2010 05:22 PM ET (US)     Profile for JIGS  Send Email to JIGS     
SouthFla: Which is the Home Depot tape you reffered to that worked well.
SouthFla posted 02-18-2010 08:32 AM ET (US)     Profile for SouthFla  Send Email to SouthFla     
Jigs, the tape was made by "m-d". In my Home Depot it's the only white foam tape (the rest are black). It is the flat NOT "D"-shaped tape, and is made of foam
NOT rubber. It comes in two 17' rolls per package, and I want to say it's either 3/8" or 1/2" wide.

I tried every other tape at HD, and none of them worked for me. The square small white foam tape was the only one to allow the lid to close flush and keep water out. My trick was to apply the tape on the lip of the hatch, NOT on the lid. For some reason nothing kept water out when affixed to the lid...

I just replaced the tape (one package does both hatches), so it looks like it lasts just about one year for me. Not great but at least I keep water out of the fish boxes :-)

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