replacing water intakes/out on hull

[simplydevine]

Hello everyone,
Over the past season i noticed alot of water building up in the bow bildge while the aft area was pretty dry. I dismissed it as water entering thru the windlass area. After placing boat on the hard i tasted the water and it was salty? What is the procedure to remove/replace the bronze thru hulls?
Thank you

1997 272 Sailfish

 

[simplydevine]

Anyone?

 

[JeffN]

I'm suprised the bronze thru hulls would have gone bad. Do you think they are not sealed properly? The only thru hull I had problems with was a nylon one. As for replacement you need to locate the back side of them and unscrew the the lock ring after you remove the attached drain hose. Goop up the new one with 5200 and install. I think I would look around at causes other than the thru hull itself, bad hose or loose etc.

 

[RJTFD]

Ever think it could be from the water your anchor line holds when you bring it up or from the water that comes in from the windlass from rain and washing your boat? All that salt water dries in the anchor locker than washes down once the rain water hits it. I would look around real hard before replacing thru hulls.Maybe look at your wash down hose to pump or even livewell hose maybe one of them leaking.
Good Luck

 

[simplydevine]

i mostly drift fish and when using anchor i have at most 150 ft or so. i used a shop vac and got 6 gallons of salty water?? 2 weeks later it is back. I guess my question was what is the required reseal for thruhulls? I will pull my transducer and check that too.
Thanks

 

[georgemjr]

I've never heard of any problems with the bronze thru-hulls. That being said, I would recommend a call to GW customer service for their recommendation on the sealant. 3M 5200 has adhesive properties, the 4200 is sealant without adhesive. Either seals as well, one just glues it in place. If you call, please post the response so that we know which they are recommending. Pull the old one out (some are very hard to get to), clean all old sealant off, put back in and tighten. If they weren't impossible to reach, it would be easy. FWIW, I have had water in every bilge, my 24 Offshore, 282 Sailfish, and now my 33 Express. I was never brave enough to taste it, but have to assume it would be salty, even if it was fresh water that leaked in (there has to be residual salt in the bilge). Good Luck...

 

[BobP]

Forget saltwater for the moment and think of water.

Have you monitored the level of water in your 25 gallon FW tank and what has the level changed over this time period?

 

[simplydevine]

I contacted Grady Customer service and was informed the thru hulls on my 1997 hull should be fine. They also stated the major cause of water entry was through the deck plates and due to the hull shape the water tends to flow forward. This could explain why i find 5-6 gallons in the bow every 2 weeks. I will replace all plates in spring.

Bob thank you for the fresh water holding tank. I did not think of that!!

 

[Desperado]

I had water showing up in mine last year. I found the seal around my sounder had gone bad. To me 6 gallons is a lot through deck plates, but I suppose it is possible. The way I found mine was to put the boat in calm water and thoroughly check everything below the water line that could possible leak. All my water was in the front also, at rest the front sits lower than the back. I guess that is a possible SeaVee2 trait on the heavier models.

 

[BobP]

SimplyD, the water only flows forward in cerian conditions, when you throttle up on plane it all runs back to the stern and gets pumped overboard by the stern bilge pump. All bilge spaces along the centerline are linked.

As far as deck plates, the covers have replacable O rings. Hard to believe such quanity of water is passing an O ring in such a short period of time, even if several are leaking.

f you pop one open you will see any water that has passed it's seal about the area.

 

[BobP]

As I think about the o rings and deck plates more, I think you would have to leave the covers off entirely on all to collect that much water in such a short period of time.

Did you tell Grady how long the 6 gallons took to collect?