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Old 13 July 2006, 15:55   #41
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Just had that bailer fitting out . its definatly the source of the leak , and most of the water must have been getting in from the outside .
there is no void there just solid plywood inside the fibreglass and the water was going between the two .

I need a new fitting really or at least the screw ring on the outside as the threads slip when I tighten it up .

As it was wet allready i cleaned and sanded it up and re fitted it using LSX which is a sort of silicone that plumbers use which cures in water . It will also be easier to remove again when i get a new fitting .

I also had the corner of the wear patch coming unstuck on the underneath of the tube at the rear. I tried a little solvent cement on it that is used for gluing pvc plumbing pipe . It seemed to work well so will report how well it stays stuck .
Off to Scilly saturday so no time for anything better .
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Old 13 July 2006, 16:48   #42
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Quote:
Originally Posted by ian parkes
Just had that bailer fitting out . its definatly the source of the leak , and most of the water must have been getting in from the outside .
there is no void there just solid plywood inside the fibreglass and the water was going between the two .
Congrats on the detective work, Ian!

And thanks. It would appear to match my leak pattern too. I'll try take a look tomorrow. Unfortunately I think I'll have to take the transom lock and/or the engine off to get at it properly

Jim
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Old 13 July 2006, 19:37   #43
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Originally Posted by jgrace
The friend's one-way flap is on his hull drain, can you use an expanding plug on a hull drain?

I don't fancy putting my head in the water next to the prop trying to plug the hull drain after it has emptied!

Jim
Depends how hard it is to get down that far I guess but I reckon you'd have to replace the hull drain with the self-bailer unit that polymarine sell-they also sell an expanding plug for that unit if you look at some of the other stuff on that page.


I've bought the avon sized self-bailer adapter and plug myself so when it arrives I'll know if it's possible....
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Old 14 July 2006, 11:36   #44
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Neat!

What diameter tube are you using?

Jim
Chose the pipe to match the fittings on the pump - 3/4"
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Old 14 July 2006, 12:11   #45
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Depends how hard it is to get down that far I guess but I reckon you'd have to replace the hull drain with the self-bailer unit that polymarine sell-they also sell an expanding plug for that unit if you look at some of the other stuff on that page.


I've bought the avon sized self-bailer adapter and plug myself so when it arrives I'll know if it's possible....
Just had a look at polymarine , looks like a good site .
I can't see any sort of drain that would suit the valiant hull drain in the form of an auto bailer . They have deck drains that look similar to the valiant ones .42mm i think and Iam pretty sure its a standard plumbing fitting size . I got a new nut from a plumbing fitting today so after the weekend I will try it . My LSX repair looks solid now its dry so will; leave it there for the weekend to prove its the deck bailer leaking.

Seamark nunn sell the actual Valiant deck drain , so may get a whole new one for the sake of few quid . It seems to me the fitting may be better with two flat rubber washers as you would use on a sink etc instead of sealant which always seems to fail in the end and is then a mess to clean up and get sealed again
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Old 14 July 2006, 17:29   #46
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The self-bailer arrived- It's not really realistic to use the Avon one I've got here to self-drain a hull as it fits on the outside like a bung and the seal isn't that good. It'll make a good emergency bung though. Maybe the one they've got on the site that self-drains and has its own bung as well...?
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Old 14 July 2006, 17:46   #47
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well the valiant hull mysteries are all revealed .
the front(anchor locker) appears to be seperate from the rest of the hull but it isn't . if you run your hands around the top edge at the aft end its completely open and if it fills up with water it will just pour over into the hull .
The fact that the hatch obviously leaks makes leaving the boat out in the rain a dead cert fot the hull filling up .
Unless you can get it off the water to drain every day or so a pump is the only way forward .

Iam wondering if a hose pushed through the gap at the top of the anchor locker down to the stern could be conected to a pump when required .A 4m length of garden hose and a hand pump that fits it would sort it out as a stopgap measure .
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Old 14 July 2006, 18:31   #48
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Ian, you're not saying that the anchor locker was the problem all along, are you?

I've no doubt you're right that it opens directly to the hull void, but it's got a relatively tiny catchment area for rainfall. I reckon no more than a square metre of the plan area of the boat could possibly end up in the anchor locker. It's probably a great deal less but let's stick with a square metre for the purposes of calculation:

The hull area that floods is say 1m by 3m therefore 3 sq metres. To fill that to an average depth of say 4" would therefore requires 12" of rain landing in the catchment area of the anchor locker! When's the last time we got 12" of rain in a few days?

Jim
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Old 14 July 2006, 18:36   #49
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Quote:
Originally Posted by Searider
Chose the pipe to match the fittings on the pump - 3/4"
A 3/4" hole in the deck can hardly do much harm, so sounds good from a structural point of view. The only drawback I can think of is the design involves a permanent spigot rather than a flush fitting.

Jim
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Old 16 July 2006, 08:37   #50
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The new hull drain fitting and bung seems to have sorted my leak. Had the boat on the water all day yesterday and barely a drop got in. Next step would have been the deck drain as per Ian's comments, which in my case would have meant the engine coming off. Very glad I don't have to do it!

Jim
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