Where is the water coming from?

[TiggerToo]

... another dammed leak! If you look at this picture

you can see where the water is seeping in (C) and accumulating (A). The plywood is stained showing some "rising damp" (B).

I noticed that the water started trickling in after filling up the tank under the forecabin bunks, but I coudl not see any evident leaks. Does anyone have any clever idea on how to trace this? I suspect it might be somewhere along the ""IN" piping, but how do you find this out when everything is concealed by the mouldings?
/forums/images/graemlins/confused.gif

 

[dnickj]

Try checking the joint between the pipe and the tank

 

[Sailfree]

1.Put a food dye inside tank through inspection hatch to determine whether its leaking from actual tank.

2. Inspect filler pipe when actually filling.

3. Taste water is it fresh or salt?

4. Any chance its condensation (hence fresh water) running down the inside and gathering at this spot?

Once had a front tank leak on a Dufour 36, proved by the food dye test, never found the cause but fixed once complete new tank fitted.

 

[TiggerToo]

[ QUOTE ]
1.Put a food dye inside tank through inspection hatch to determine whether its leaking from actual tank.

GOOD IDEA

2. Inspect filler pipe when actually filling.

DITTO

3. Taste water is it fresh or salt?

FRESH... it started seeping in when I filled the tank... 50 m above sea level up on a cradle

4. Any chance its condensation (hence fresh water) running down the inside and gathering at this spot?

No: I hand been drying the boat out of condensation all weekend and it was quite dry at last (Ebespacher heating and then changing thot moist internal air with cold dry air ... wather good for this last w/e!!)

Once had a front tank leak on a Dufour 36, proved by the food dye test, never found the cause but fixed once complete new tank fitted.
It would be great if I did not have to do it.

Someone also suggested (elsewhere) that it might be comin in from the deck the mouldings /forums/images/graemlins/mad.gif


[/ QUOTE ]

 

[ajt]

Also check the pipes, I had a leak that was very hard to find. It turned out to be a small pinprick hole in the pipe, which was only visible when I had taken the whole length of pipe out for inspection.

 

[BlueSkyNick]

I cant see the picture because of where I'm logged on.

however one 'clever idea' often suggested on here is to sprinkle talcolm powder on all nearby surfaces, and leave it a few days. When you come back, you should/might be able to see the course of the trickle.

 

[Stork_III]

Have you checked the breather overflow pipe if fitted.

 

[Spyro]

you could try disconnecting the pipe to tank joint and plugging it, if water continues to leak then it would look like the tank is the problem. If it stops pour some water into the filling pipe from outside and see what happens.

 

[ValleyForge]

Your gonna have to take the tank out .....

99% it will be the tank / pipework

1% chance a leak from above, like hull/deck join & wicking through the glass.

Had a similar leak on a charter boat once - first outing on a brand new craft (leaky pipe join). Frog job.

 

[TiggerToo]

[ QUOTE ]
Have you checked the breather overflow pipe if fitted.

[/ QUOTE ]

I must do this: I have a hunch this is what it is....

 

[capsco]

Could it be condensation dripping from the alluminium hatch?

 

[TiggerToo]

No, definitely not