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Old 15 April 2006, 16:13   #1
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puzzled about leaky toob

I seem to have sprung a leak....

Thought the RIB was a bit floppy on one side yesterday so I pumped it up "slightly harder than the other side" and today it is "somewhat softer than the other side" so I guess I have a slow leak, it has been OK since I got it.

Thing is, the whole tube on that side is the same - both compartments have gone down by the same amount. I'm not sure where the divider is, but it must be somewhere between the 2 valves I assume....

Are the compartments in a RIB tube supposed to be completely isolated? I wouldn't have thought there was much point in having separate compartments if not ... but wondered if there was some sort of slow "equalisation valve" between the two, seems unlikely though.

But I pumped both up yesterday to "fairly firm" and this morning both were "equally floppy" seems to be not much chance of having two holes in the thing at the same time, and I haven't hit anything, it has been OK up until yesterday when I noticed it was a bit flobbery in choppy conditions.

AFAIK the Destroyer is supposed to have 5 compartments: 2 on each side and one in the bow and I assume they are supposed to be completely separate - can anybody confirm this please?

bit at the moment.... gonna go back and pump it up again and see if it is flat again tomorrow.

Do they make "Tyreweld" for RIBs?!

ta

Stephen
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Old 15 April 2006, 16:24   #2
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Quote:
Originally Posted by BogMonster
I seem to have sprung a leak....
dem arjies av probuly shott itt wiv a boe an arrer.

weel sennd a tassk fawce.

gaRf
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Old 15 April 2006, 18:00   #3
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Nah mate - not that likely.

They were not a very good shot and usually hit their own anyway, at least when they were shooting at planes
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Old 15 April 2006, 18:09   #4
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I don't claim to know anything about toobs - but I have seen several people here talk about slow leaks between chambers (either intentional design or defects).

e.g. Leaks between chambers...
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Old 15 April 2006, 20:04   #5
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Edit: sorry replied to the wrong thread!
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Old 16 April 2006, 00:52   #6
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Also have to take into account that the baffle has a bit of "flop" built into it. Pumping up both sides and allowing one to deflate slightly may show up as a loss of pressure in both sections, as the baffle compensates.

Or, as stated, you may have a leak in one section, and a leak in the baffle.

Pump it up, and use a spray bottle with soapy water. Should be able to locate it pretty quick. Maybe.

jky
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Old 16 April 2006, 06:13   #7
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I fiddled a bit yesterday and established where the baffles are - let one bit right down so I could see where it went floppy (ooer). There are indeed 5 chambers a small bow chamber and a join about halfway along each side. I pumped the two suspect ones up really hard and put my ear to the tube but I couldn't hear any hissing nor were there any bubbles coming up from below the waterline (which I would assume is where a hole would be...)

Have pumped them all up evenly and will go back for a look this morning.... be a nuisance if they are flat again as I wasn't planning on taking it back out of the water yet and the previous owner helpfully left me a strip of orange Hypalon for repair work but no glue to stick it on with....

Soapy water in a plant sprayer, now there is an idea

thanks
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Old 16 April 2006, 08:06   #8
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some tips for you,
Hypalon, sand off the surfaces the glue is to be applyed(or it won't stick),
use a two part glue,you won't get a good fix with any pressure in the tube.

the trick, apply your glue, to the surfaces (the patch, and the boat)
and wait about 15-25mins, coat it again, wait the same 15-25mins
stick them together, rub them together to get any pockets out,
put a sand bag on it if you can, should be set next day.

you can put a patch the same shape on the other side of the boat
so it matches and looks nice.
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Old 16 April 2006, 08:25   #9
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Bostic 2401 is the 2partstuffto use. ifyou can#t get then Hanshaws might beable tosupply someforyou. or inflateable boat supplies
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Old 16 April 2006, 10:44   #10
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Steve,

I have also got a slight leak in one of my tubes but fortunatley for me I know where it is.
I was discussing this with a fellow Ribber the other week and he suggested putting talcum powder in the tube to seal the leak.
I have'nt tried this yet but I suppose it would only work for small holes.

Mark
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