Reply
 
Thread Tools Search this Thread
 
Old 17 July 2006, 13:02   #51
Member
 
Country: UK - England
Town: cornwall
Boat name: nothing
Make: rib eye 430
Length: 4m +
Engine: tatsu 50
MMSI: 666
Join Date: Mar 2006
Posts: 1,916
Quote:
Originally Posted by jgrace
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
No iam not saying the problem is the anchor locker , just that if the locker fills up water can run back into the hull .

Just had mine on the water for over 48hrs and there was still at least a gallon or maybe two in the hull , so the deck drainer hasn't cured the leak , but maybe slowed it down . A pump or possibly some way of opening the hull drain as Iam moving to draw out water is the only way . Iam now at a total loss , but its not often the boat is afloat overnight so no panick .

We had no rain but did have some rough seas so there was some water getting into the boat , but the anchor locker didn't fill up as I used the anchor when we got to Scilly
__________________

__________________
ian parkes is offline   Reply With Quote
Old 17 July 2006, 14:33   #52
Member
 
Country: UK - Scotland
Town: Glasgow
Boat name: The Black Pearl
Make: BRIG F400S
Length: 4m +
Engine: 40HP E-TEC
Join Date: Feb 2006
Posts: 91
I'd been having exactly the same problem - if I left my boat in the water overnight there would be a *lot* of water in the void under the floor. After reading this thread, resealed the bung connector (in my boat the bung is threaded and screws in) and put teflon tape on the bung itself. Now all seems perfect, boat was on the water for about 30hrs and there was only a drible of water (50ml ish).
__________________

__________________
fjarvis is offline   Reply With Quote
Old 17 July 2006, 14:38   #53
Member
 
Country: UK - England
Town: cornwall
Boat name: nothing
Make: rib eye 430
Length: 4m +
Engine: tatsu 50
MMSI: 666
Join Date: Mar 2006
Posts: 1,916
Iam on the hunt for a self bailing plug like the one at Polymarine but in the right diameter .

Also earlier in this post I mentioned using polypipe pvc pipeweld to gleu back a little flap on the wear patch , it didn't last so now after some proper glue
whats best ?? for the valiant
__________________
ian parkes is offline   Reply With Quote
Old 17 July 2006, 15:52   #54
Member
 
Country: Ireland
Town: Dun Laoghaire
Boat name: Ruby
Make: Valiant 490
Length: 4m +
Engine: Yamaha 60-4
Join Date: Mar 2006
Posts: 74
Quote:
Originally Posted by fjarvis
(in my boat the bung is threaded and screws in)
The lower of the two drains (i.e. the hull drain) on the Valiant is threaded just like yours. The Valiant's deck drain is the one with the expanding bung.

Good to hear you got sorted, sounds like both of our leaks were in the same place.

Jim
__________________
jgrace is offline   Reply With Quote
Old 17 July 2006, 15:56   #55
Member
 
Country: Ireland
Town: Dun Laoghaire
Boat name: Ruby
Make: Valiant 490
Length: 4m +
Engine: Yamaha 60-4
Join Date: Mar 2006
Posts: 74
Quote:
Originally Posted by ian parkes
Just had mine on the water for over 48hrs and there was still at least a gallon or maybe two in the hull , so the deck drainer hasn't cured the leak , but maybe slowed it down . A pump or possibly some way of opening the hull drain as Iam moving to draw out water is the only way . Iam now at a total loss , but its not often the boat is afloat overnight so no panick .
Might be worth trying the hull drain. The o-ring on mine looked a bit cracked but screwed in tight, making it hard to believe it was the source of such a big leak. But it was!

Jim
__________________
jgrace is offline   Reply With Quote
Old 17 July 2006, 16:00   #56
Member
 
Country: UK - England
Town: cornwall
Boat name: nothing
Make: rib eye 430
Length: 4m +
Engine: tatsu 50
MMSI: 666
Join Date: Mar 2006
Posts: 1,916
Was the first thing I tried , i filler the hull with some water and put the bung in to test it .
Unless its a one way leak
__________________
ian parkes is offline   Reply With Quote
Old 17 July 2006, 16:08   #57
Member
 
Country: Ireland
Town: Dun Laoghaire
Boat name: Ruby
Make: Valiant 490
Length: 4m +
Engine: Yamaha 60-4
Join Date: Mar 2006
Posts: 74
Quote:
Originally Posted by ian parkes
Also earlier in this post I mentioned using polypipe pvc pipeweld to gleu back a little flap on the wear patch , it didn't last so now after some proper glue
whats best ?? for the valiant
I understand Valiants make / have made ribs in Hypalon, polyurethane, PVC and possibly even a patent plastic of their own. Suggest you contact a Valiant agent with your boat number so he can tell you what your spec is.

Jim
__________________
jgrace is offline   Reply With Quote
Old 17 July 2006, 16:11   #58
Member
 
Country: Ireland
Town: Dun Laoghaire
Boat name: Ruby
Make: Valiant 490
Length: 4m +
Engine: Yamaha 60-4
Join Date: Mar 2006
Posts: 74
Quote:
Originally Posted by ian parkes
Was the first thing I tried , i filler the hull with some water and put the bung in to test it .
Unless its a one way leak
Even when mine was carrying a quarter of a ton of water in the hull, on the trailer on a slip, nothing came out until I unscrewed the bung!
__________________
jgrace is offline   Reply With Quote
Old 17 July 2006, 16:24   #59
Member
 
Country: UK - England
Town: cornwall
Boat name: nothing
Make: rib eye 430
Length: 4m +
Engine: tatsu 50
MMSI: 666
Join Date: Mar 2006
Posts: 1,916
Quote:
Originally Posted by jgrace
Even when mine was carrying a quarter of a ton of water in the hull, on the trailer on a slip, nothing came out until I unscrewed the bung!
maybe you did this but I dried the bung with a tissue so I could see even 1 drip running out around the fitting or the bung . it stayed dry . I guess if the bung is leaking its only a few drips a minute so I wouldn't expect to see it running on the slipway . A new O ring certainly wouldn't be a bad idea.
__________________
ian parkes is offline   Reply With Quote
Old 17 July 2006, 17:02   #60
Member
 
Country: Ireland
Town: Dun Laoghaire
Boat name: Ruby
Make: Valiant 490
Length: 4m +
Engine: Yamaha 60-4
Join Date: Mar 2006
Posts: 74
Quote:
Originally Posted by ian parkes
maybe you did this but I dried the bung with a tissue so I could see even 1 drip running out around the fitting or the bung . it stayed dry . I guess if the bung is leaking its only a few drips a minute so I wouldn't expect to see it running on the slipway
I agree I only gave it a quick glance. But the boat had shipped (figures adapted for convenience) 240 litres in 48 hours. That's 5 litres an hour, average. When it's coming out again, it's got a reducing head, so it should come out fast first, slower later. On that basis I should have been seeing 6+ litres an hour leaking at the bung when the hull was full of water. That's a litre every 10 minutes, which is quite a visible leak I reckon.

Even given that it was a cursory inspection, I don't think there was that kind of leak. So it could have been a one-way leak. Why not?

As you say, a new o-ring wouldn't be a bad idea. Good luck looking for it, I ended up replacing the entire fitting because I couldn't find an o-ring the right size.

Jim
__________________

__________________
jgrace is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 16:08.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.