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Old 28 October 2006, 16:55   #11
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Originally Posted by paul tilley View Post
stephen what you need is a cone with a short length of tube already glued to it to overlap onto .if you open up the main seam under the rubbing strake it is quite possible to do the repair you need but bloody awkward .hard to explain on the forum but if you send me your email i will try to take photos of an old tube with instructions on how to do repair . ps i have just taught a guy from ireland how to fit his tubes via email
Cool, I see what you mean, thanks Paul, will PM you with my email address in a moment. That sounds easier than trying to do it right at the cone. I'd have to peel the rubbing strake back quite a long way as it goes right to the cone, but I guess a hot air gun would do that ok and I suppose it'll re-stick alright.
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Old 28 October 2006, 16:57   #12
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Mrs Hearne has certainly kept her youthful looks, but 12 yrs old must be a typo!

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Old 28 October 2006, 20:45   #13
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Hypalon

Stephen,
I have never even heard or seen low qualiyt pvc or hypalon do this. Especially in only 6 years. It seems either the person who owned this boat before you introduced some sort of chemical inside of the tube, or you have a defective set of tubes. I would try to write to the highest level of humber you can contact and tell them your story. If they don't at least respond with some sort of assistance offer or repair offer, they are obviously a company built on a poor ethics, and should be dealt with accordingly. If you try and find that they are ass@#%, let us all know, and we shall haze them with hate mail, and tell them how much we think they suck. (I will at least)
Jimmy
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Old 28 October 2006, 23:34   #14
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Originally Posted by Jimmy_Beam View Post
It seems either the person who owned this boat before you introduced some sort of chemical inside of the tube, or you have a defective set of tubes. I would try to write to the highest level of humber you can contact and tell them your story. If they don't at least respond with some sort of assistance offer or repair offer, they are obviously a company built on a poor ethics, and should be dealt with accordingly. If you try and find that they are ass@#%, let us all know, and we shall haze them with hate mail, and tell them how much we think they suck. (I will at least)
With respect Jimmy, it hardly seems fair to unload on the manufacturer if, as you suggest, a prior owner might have done something to them... which I presume is pure speculation. The only Humber I have seen over here, was owned by a friend of mine. He ran the boat hard for three seasons as a dive charter boat before moving to a tug. To the best of my knowledge, he never had any problems with the tubes.

Stephen, as others have suggested, don't condemn all tubes! My boat gets a lot of use and it is 12 years old as well, and the tubes show no signs of deterioration....
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Old 29 October 2006, 03:59   #15
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Don't really think a previous owner would have put anything in to the tubes - when I got it there was no sign of any problems anyway, all this has appeared since March in about 30 odd hours running time.

In some ways I think the only option I'd feel completely happy with is getting a whole new hull and tubes and transferring everything across, otherwise every time I go out I'll just be waiting for something else to break. I can't help feeling that this one now is a bit like working on a 20 year old brake system, you have a brake pipe that needs changing so you change it, and in the process the one next to it breaks, so you change that, and then the one next to that breaks, and after ages and lots of cursing you end up having spent twice as much money and time, and still changed the whole system, where it would have been easier and cheaper to have made that decision to start with, ripped everything out and started again from scratch! Maybe 2000 was a bad year for quality, maybe it was a Monday morning job, maybe a bad batch of fabric, maybe it has been exposed to some chemical, who knows.... its still falling to bits.

Even more annoying is the fact I wasted the best part of 500 (incl the freight) on ordering a jockey seat and the damn thing isn't even here yet, might as well have saved that if I was going to get rid of it anyway
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Old 29 October 2006, 11:37   #16
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Stephen,

I seem to remember you mentioning black marks on the tubes at the after ends, before you cleaned them. Could it be that the boat had been afloat in some polluted water containing nasty hypalon eating chemicals?

My boat is 2000 vintage, so if Humber had a bad batch of tube material (Orca on mine) then it's a bit of a worry. I must say that I'm a bit disappointed at the way my tubes deflate quite quickly. Needs pumping every week. No obvious leaks or lifted seams (though I've not tested it with bubbly detergent. Until it was stolen off my beach this summer, I had an Avon Redcrest which, at 15 years old, needed pumping just twice a year to keep it hard.

I think the Orca material is made in France. Always been a bit concerned about things French leaking more than they should. Seems I was right to be.

Sorry you're have such major problems. Cheers, Tony
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Old 29 October 2006, 13:38   #17
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Nothing wrong with the material - they nearly all use it. My boat has just needed some air in the tubes after a really hot summer where it obviously vented off as it should to avoid burst seams. First time I put air in it - needed about 15 pumps per chamber using a stirrup type pump.
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Old 29 October 2006, 14:35   #18
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stephen what colour is the inside surface of your tubes
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Old 29 October 2006, 19:23   #19
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stephen what colour is the inside surface of your tubes
Paul, I guess it's black on the inside of the tubes, the repair fabric I have which I think came with the boat is black on one side and orange on the outside, and the damaged bit where the patches came off and took the top layer of material with it, looks black underneath the fabric weave. Took it out of the water and the leak is in fact in the same location it was in before, just that there's not now anything left to glue it to between the two parallel cone seams.... I think the cone off job is going to be the only way, kill or cure as they say, its not a lot of use with the tube flapping in the breeze like it is at the moment

alystra, I doubt whether there have been any chemical spills here as its not the sort of thing that happens here. I think it was probably a bit of oil on the surface that made the marks, but my understanding was that Hypajunk is supposed to be oil and petrol resistant anyway?
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Old 31 October 2006, 15:13   #20
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Here is a photo of the failure.

You can see the original failure zone which has spread much more than before, and you can see where the patch used to be, now gone along with the orange layer it was glued to! I'm glad I didn't waste all that time putting the wear patches on as they would have all had to come off again now ... and would have just been covering up the bigger problem IMHO

You can also see (a couple of inches up towards my hand) along the zone of weakness where the outer layer is starting to split in a new place. Reinforces my original opinion that the original problem a few months ago was caused by the design of the two parallel seams close together which focuses all the flexing into a narrow area, plus the lack of wear patches .... and makes me even more damn sure it didn't go pop because I hit anything!

Reckon if I can saw the whole end off the tube and get a new one to stick, I might be in with a fighting chance... the fabric that the main part of the tube is made of appears to be ok [fingers crossed smiley]

Still don't think I should have to do this much work on a 300 hour leisure boat though just wish I could take it to Paul Tilley or Henshaws and say "fix it and send me the bill" but its a bit far for that did a quick estimate on sending it to Chile for repair the other day and even the freight there and back would have been three and a half grand that's before anybody even looks at it!
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