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05-29-2017, 09:25 PM
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#1
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Water in bilge
I have water getting in my bilge and can't find the source. All hose's are good. All thru hulls look good. Everything is dry except the main center bilge.
I drained fresh water tanks, pumped out holding tanks so it has to be a leak someplace. I had a diver clean the bottom and check for any sign of damage but he said all looked good.
I guess the next move is to haul it out and take a look.
Any idea's?
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05-29-2017, 09:40 PM
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#2
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Guru
City: Quebec
Vessel Name: Bleuvet
Vessel Model: Custom Built
Join Date: Jan 2016
Posts: 4,375
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Do you have any conduct that lead to your bilge from anywhere else? I had some water in bilge that was puzzling me, found out it was a small leak from my water heater that was going all the way along a conduct to my ER. 1 drop every 10 seconds, at the end of the day it is 1 gallon in the bilge.
You may use some dye in the water to find out. Like a bit of red in your fresh water, a bit of green in your cooling water etc. When you see a color in your bilge you will know the source.
L.
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05-29-2017, 09:58 PM
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#3
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Moderator Emeritus
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,187
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When you find the general area that you think the water is coming into, you can line it with paper towels and see where it gets them wet. Once they have been wet even if they dry out before you check them they will still show where they were wet.
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05-29-2017, 09:59 PM
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#4
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Guru
City: Pender Harbour, BC
Vessel Name: Gwaii Haanas
Vessel Model: Custom Aluminum 52
Join Date: Sep 2013
Posts: 3,791
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Salt or fresh?
__________________
Don't believe everything that you think.
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05-29-2017, 10:11 PM
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#5
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Guru
City: Vallejo, California
Vessel Name: Mahalo Moi
Vessel Model: 1986 Grand Banks 42 Classic
Join Date: Jun 2008
Posts: 2,093
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This ^. Salt or fresh. Eliminate either outside origin or inside origin. Has it been raining where you keep your boat? Might check an entry source from decks, window frames, etc.
__________________
Ray
"Mahalo Moi"
1986 GB-42 Classic
ΜΟΛΩΝ ΛΑβΕ
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05-29-2017, 10:15 PM
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#6
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Quote:
Originally Posted by Comodave
When you find the general area that you think the water is coming into, you can line it with paper towels and see where it gets them wet. Once they have been wet even if they dry out before you check them they will still show where they were wet.
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I can see it seeping in the bottom of the bilge. Center low spot of the bilge. It will have 1" in about an hour. The pump takes care of it but it's now starting to smell damp and muskey. It looks like it's coming from a crack in fiberglass.
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05-29-2017, 10:16 PM
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#7
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Quote:
Originally Posted by Giggitoni
This ^. Salt or fresh. Eliminate either outside origin or inside origin. Has it been raining where you keep your boat? Might check an entry source from decks, window frames, etc.
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No rain. It appears to be salt water.
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05-29-2017, 10:19 PM
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#8
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Quote:
Originally Posted by Lou_tribal
Do you have any conduct that lead to your bilge from anywhere else? I had some water in bilge that was puzzling me, found out it was a small leak from my water heater that was going all the way along a conduct to my ER. 1 drop every 10 seconds, at the end of the day it is 1 gallon in the bilge.
You may use some dye in the water to find out. Like a bit of red in your fresh water, a bit of green in your cooling water etc. When you see a color in your bilge you will know the source.
L.
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Everything looks dry. All hose's and connections look good and dry.
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05-29-2017, 10:20 PM
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#9
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Where does most A/C drain?
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05-29-2017, 10:20 PM
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#10
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Guru
City: Vallejo, California
Vessel Name: Mahalo Moi
Vessel Model: 1986 Grand Banks 42 Classic
Join Date: Jun 2008
Posts: 2,093
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Assuming it's salt water (about 9 pound per gallon for salt -vs- 8.3 pounds per gallon for fresh), do you have stuffing boxes on your drive shafts or drippless? Typical stuffing boxes will drop slowly by design.
__________________
Ray
"Mahalo Moi"
1986 GB-42 Classic
ΜΟΛΩΝ ΛΑβΕ
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05-29-2017, 10:21 PM
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#11
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Moderator Emeritus
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,187
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Can you seperate your bilge into multiple area using something like plumbers putty to make temporary dams so you can narrow down where the water is coming in from?
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05-29-2017, 10:23 PM
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#12
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Moderator Emeritus
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,187
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Hopefully your A/Cs drain into a sump and get discharged overboard. If they drain into the bilge and it is humid they could be the source of your water.
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05-29-2017, 10:26 PM
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#13
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Quote:
Originally Posted by Giggitoni
Assuming it's salt water (about 9 pound per gallon for salt -vs- 8.3 pounds per gallon for fresh), do you have stuffing boxes on your drive shafts or drippless? Typical stuffing boxes will drop slowly by design.
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Drippless and they are new and look great.
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05-29-2017, 10:29 PM
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#14
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Quote:
Originally Posted by Comodave
Hopefully your A/Cs drain into a sump and get discharged overboard. If they drain into the bilge and it is humid they could be the source of your water.
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I can't find a sump for them. Also haven't traced them to see if they do dump into the bilge someplace.
I did have the a/c off all day but water still came in. I will chase that down in the morning to see where it goes.
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05-29-2017, 10:30 PM
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#15
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Quote:
Originally Posted by fishpcb
I can't find a sump for them. Also haven't traced them to see if they do dump into the bilge someplace.
I did have the a/c off all day but water still came in. I will chase that down in the morning to see where it goes.
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Being in Florida it's hot and humid. I'm sure the a/c units pull a lot of moister out of the air.
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05-29-2017, 11:21 PM
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#16
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Guru
City: Between Oregon and Alaska
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 3,023
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In cold water the copper salt water supply line to my watermaker condenses moisture and drips. Could it be condensation from somewhere?
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05-29-2017, 11:35 PM
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#17
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Quote:
Originally Posted by Lepke
In cold water the copper salt water supply line to my watermaker condenses moisture and drips. Could it be condensation from somewhere?
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I don't have a watermaker but it could be from a/c.
Checking the a/c to find out.
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05-29-2017, 11:58 PM
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#18
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Guru
Vessel Model: Nordic Tug 37
Join Date: Sep 2015
Posts: 1,107
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Hi,
have you watched the hot water tank pressure valve.
I always leak water from this water heather tank. when I start driving on the engine and I have not remember to level the pressure in the system or shut off the pump. When the engine warms up it raises the heat of the water in the charger and at the same time the pressure that opens the pressure valve and drains water into the bilge. 1-2 dl Every time the time warms up my cummins
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05-30-2017, 05:47 AM
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#19
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Senior Member
City: Green Cove Springs, Florida
Join Date: Feb 2012
Posts: 344
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I am assuming you have a keel. If the water coming in smells bad then it may be seeping in from there. Some of the far eastern built hulls have the keel sump glassed over so water could be getting in there then oozing through the glass covering over the sump. It collects a bad odor on its way through.
Water could also be leaking in somewhere you have not found yet. It could be entering a stringer at one end of the boat and coming out at the other.
I checked a boat for an owner who had water in his forward lower cabin bilge. It turned out to be a leaking shower valve near the transom!
Quote:
Originally Posted by fishpcb
I can see it seeping in the bottom of the bilge. Center low spot of the bilge. It will have 1" in about an hour. The pump takes care of it but it's now starting to smell damp and muskey. It looks like it's coming from a crack in fiberglass.
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05-30-2017, 07:46 AM
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#20
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Senior Member
City: Panama City Beach
Join Date: Dec 2016
Posts: 117
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Quote:
Originally Posted by bglad
I am assuming you have a keel. If the water coming in smells bad then it may be seeping in from there. Some of the far eastern built hulls have the keel sump glassed over so water could be getting in there then oozing through the glass covering over the sump. It collects a bad odor on its way through.
Water could also be leaking in somewhere you have not found yet. It could be entering a stringer at one end of the boat and coming out at the other.
I checked a boat for an owner who had water in his forward lower cabin bilge. It turned out to be a leaking shower valve near the transom!
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It is a bad odor. I changed to head hoses thinking that was the source of smell. That was not the source of smell. I do have a keel and think that may be where the problem is coming from.
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