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16 July 2023, 23:07
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#1
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Member
Country: Sweden
Join Date: Jul 2023
Posts: 9
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Water in hull, Tornado 6.5m
Hi
I found a Tornado 6.5m RIB under a tarpet in a far away corner at a friends place the other day. It's been sitting there for some 15 years.
Managed to get it out of there today and towed it to my place. Gave the engine and the electrics some love and got it fired up. Pumped the tubes and she seems ready for a test drive.
However, I noticed when tipping the boat with the nose high up, that I could hear water "gurgling" inside the hull, about midship. It seemed to be quite an amount as it keep gurgling for a while.
I have not found any openings, inspection hatch or bung drain.
So, of course I would like to get the water out, and would also prefer to be able to inspect the inside of the hull.
What are you suggestions on this?
1. How to get the water out?
2. If it's a good idea to add an inspection hatch, and if so, where to put it?
Any suggestions on where the water might have gotten into the hull is also appreciated. The boat's been under a tarpet, and the tarpet seemed to hold tight, as it was full of water, but the boat underneath was dry.
Thanks!
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17 July 2023, 06:00
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#2
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Member
Country: UK - England
Town: Abersoch
Boat name: vanishing point
Make: phantom, Ribtec
Length: 6m +
Engine: 200hp
Join Date: Nov 2014
Posts: 495
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Quote:
Originally Posted by ThomasX
Hi
I found a Tornado 6.5m RIB under a tarpet in a far away corner at a friends place the other day. It's been sitting there for some 15 years.
Managed to get it out of there today and towed it to my place. Gave the engine and the electrics some love and got it fired up. Pumped the tubes and she seems ready for a test drive.
However, I noticed when tipping the boat with the nose high up, that I could hear water "gurgling" inside the hull, about midship. It seemed to be quite an amount as it keep gurgling for a while.
I have not found any openings, inspection hatch or bung drain.
So, of course I would like to get the water out, and would also prefer to be able to inspect the inside of the hull.
What are you suggestions on this?
1. How to get the water out?
2. If it's a good idea to add an inspection hatch, and if so, where to put it?
Any suggestions on where the water might have gotten into the hull is also appreciated. The boat's been under a tarpet, and the tarpet seemed to hold tight, as it was full of water, but the boat underneath was dry.
Thanks!
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Could it be petrol ? Does it have an under deck fuel tank ?
Sent from my motorola edge 20 lite using RIB Net mobile app
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17 July 2023, 06:33
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#3
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Member
Country: Sweden
Join Date: Jul 2023
Posts: 9
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Quote:
Originally Posted by whiskylee
Could it be petrol ? Does it have an under deck fuel tank ?
Sent from my motorola edge 20 lite using RIB Net mobile app
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Could be perhaps.
It was actually my first thought, that it was petrol going through the baffles. But I didn't realize the fuel tank could be down there. Now that you mention it I think you are right. I have to take a look to see if I can inspect the fuel tank. That's still in the to do list actually.
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17 July 2023, 06:50
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#4
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Member
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 70hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 4,607
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Quote:
Originally Posted by ThomasX
Could be perhaps.
It was actually my first thought, that it was petrol going through the baffles. But I didn't realize the fuel tank could be down there. Now that you mention it I think you are right. I have to take a look to see if I can inspect the fuel tank. That's still in the to do list actually.
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I hope you used a remote fuel tank on the engine to fire up. Don’t use the petrol in the internal tank. Pump it out into a clear container and see what you’re dealing with. Once it’s up and running install a fuel water separator if one isn’t already there. Hopefully the hull is dry, but water can get in from any deck fixings if not sealed properly, such as console, seats, if not glassed over.
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17 July 2023, 09:03
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#5
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Member
Country: Sweden
Join Date: Jul 2023
Posts: 9
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Quote:
Originally Posted by spartacus
I hope you used a remote fuel tank on the engine to fire up. Don’t use the petrol in the internal tank. Pump it out into a clear container and see what you’re dealing with. Once it’s up and running install a fuel water separator if one isn’t already there. Hopefully the hull is dry, but water can get in from any deck fixings if not sealed properly, such as console, seats, if not glassed over.
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Yes, it was fired up from an external tank with fresh fuel. Water separator filter and fuel hoses has been replaced and new fuel has been filled in the main tank.
The old fuel seemed to be ok, I'll probably use it to top up the fresh fuel.
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17 July 2023, 12:45
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#6
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Member
Country: Sweden
Join Date: Jul 2023
Posts: 9
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From a bit of googling it seems the fuel tank capacity is 90 litres, and that's what the size of the tank inside the steering console adds up to. So I assume it does not protrude down into the hull.
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18 July 2023, 07:32
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#7
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Member
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 70hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 4,607
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Quote:
Originally Posted by ThomasX
From a bit of googling it seems the fuel tank capacity is 90 litres, and that's what the size of the tank inside the steering console adds up to. So I assume it does not protrude down into the hull.
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I wouldn't use 15 year old fuel even if your mixing it, you're just causing potential issues for yourself down the line. Use it for lawnmowers, chainsaws, etc.
I'd drain off the fuel in the console and then check the hull again, just to rule out any water. Do the fuel pipes run across the deck to the engine, or do they come out at a flexible witches hat grommet with underdeck trunking?
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18 July 2023, 18:36
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#8
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Member
Country: Sweden
Join Date: Jul 2023
Posts: 9
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There's definitely water in the hull.
Now the only question is where to position the inspection hatch.
I am thinking on the center behind the seat.
Any reason not to put it there?
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18 July 2023, 20:09
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#9
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Member
Country: Other
Town: Principalite d'Chaos
Boat name: The Nashers Revenge!
Make: Windsor Brothers
Length: 6m +
Engine: Optimax 225
MMSI: "Mmmmm SI" she said!
Join Date: Jan 2004
Posts: 4,891
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Less likely to be a stringer on the centreline of the boat.
But I'd suggest a small hole first that you can plug easily and use a cheap Bluetooth Endoscope to have a look around before cutting the big hole.
https://www.rib.net/forum/f19/new-toy-83646.html
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23 July 2023, 22:28
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#10
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Member
Country: Sweden
Join Date: Jul 2023
Posts: 9
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Ok, so I opened her up and got some 50 litres/15 gallons of really dark water out.
Now the worrying thing is the fact that the deck is a sandwich design with marine plywood in between the two layers of grp, and it turned out to be really wet. How the heck do I dry that out?
Second question is how it got that wet.
Any ideas anyone?
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24 July 2023, 07:15
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#11
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Member
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: S/R5.4/regal3760
Length: 10m +
Engine: Suzukidf70 2x6lp 315
Join Date: Jul 2009
Posts: 3,927
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Quote:
Originally Posted by ThomasX
Ok, so I opened her up and got some 50 litres/15 gallons of really dark water out.
Now the worrying thing is the fact that the deck is a sandwich design with marine plywood in between the two layers of grp, and it turned out to be really wet. How the heck do I dry that out?
Second question is how it got that wet.
Any ideas anyone?
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Are you saying the ply core is wet? If thats the case it will never dry out with glass either side of it. You can either leave it or cut it out.
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31 July 2023, 19:20
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#12
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Member
Country: UK - England
Town: Nottinghamshire
Boat name: Wakey
Make: Tornado
Length: 5m +
Engine: Mariner 75 2 stroke
Join Date: Jun 2014
Posts: 566
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If the deck has screw holes in it where seat, console or A frames are screwed into then water will pass to the inner hull. The boat could have been left out in the rain and it's become a bath tub.
If I remember right the stringers are glassed but the underside of the deck won't be. Where the stringers sit in the keel, a hole has been cut into them to allow water to flow out of the drain plug. There would have had to been lots of water to wet the marine ply.
Does the deck have spongy spots when you walk on it? If it's solid under foot then I wouldn't worry too much. If the boat is sat on a trailer then chock the hitch end right up to allow the hull to fully drain...I jack mine up a little and leave the drain plug out...even though I have a cover (get a cover).......don't forget to put the drain plug back though or Broncus Guru will get ya, lol.
Best of luck.
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