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Old 08 June 2004, 19:26   #1
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Water in hull

Today I drained my 9. for approx. 400 l. of water (the boat is 6 weeks new) the problem is that there still is a lot of water on the sides of the hull, is this normall, did not happen to my last rib, and how do I get rid of this water?
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Old 08 June 2004, 19:32   #2
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Fjordrafting,

was the water drained whilst the boat was still in the water or was it on land?

Was the bung in?
If no bung, was the Elephants trunk(s) up?
Do you have a bilge pump?
Has it rained there?

If the boat is out of the water then to check water integrity just put the hose pipe in the boat (with bung shut & or trunks up) & watch to see if any water escapes.

Pete
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Old 08 June 2004, 20:06   #3
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For most new RIBs this is not normal, most are airtight. However over time water can get in. Holes in the deck caused by fixings etc. Small cracks in the deck can allow water in etc. Faults in the build. External damage etc ...

If the boat was designed to take water into its hull then normally they are designed to pump out or drain out. There is no way permanent water in the hull is good for the boat unless its in balast tanks.

If the boat is new, go back to the manufacturer and ask them ...
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Old 09 June 2004, 02:41   #4
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Do your control cables and wiring looms go under the deck and exit at the transom through a duct / tube ?
Is so check that the end is sealed - a rubber gaiter is normal but I prefer to usr expanding foam. If you get flooded ( particularly if carrying divers and swell is washing ovr the transom when kitting up , you may get quite alot of water on board .......... ) it is suprsising how mush can flow through a 100mm tube !!
If this is likely, make sure you get all, or as much, of the water out before re-sealing.
If it is new - as alreday advised, ..... take it back.
If everything is ducted - I assume that the front entry is in side a dry console ? - if not same laws of physics will apply !!
Good luck
Jeff
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Old 09 June 2004, 07:22   #5
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Quote:
Originally Posted by Fjordrafting
Today I drained my 9. for approx. 400 l. of water (the boat is 6 weeks new) .
Get the manufacturers to correct the problem.
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Old 09 June 2004, 07:31   #6
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Martin,

A question for you...

You have edited your comments on the "11m major problems" thread and if I remember correctly, you originally mentioned that you had taken the boat apart once you arrived in Norway and re-assembled it. Is this correct?
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Old 09 June 2004, 17:08   #7
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You remember very well.
I did unschrew every screw exept from the seats. But I only made things thigter since i used Sikaflex on every screw going into glassfiber.
My problem is what to do with the water locked inside the hull?
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Old 12 June 2004, 04:59   #8
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I had the exact same problem. In the end I drilled a hole big enough to get a decent sized hose in, and syphoned it all out (around 50kg of water in the end). I concluded it was coming in through the holes in the deck which I had drilled in order to fix the console down (I used toggle bolts, so the holes went all the way through). Having drained the hull, I totally sealed all the (bolt) holes with silicone, then resealed the drainage hole with firbe glass etc. Can hardly tell there was a hole there now, and the boat sits much higher in the water at the back now without the extra weight.
If it is a re-occuring problem you could put a "bung" type screw cap thingy on the hole you drill so you can easily drain it again.
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Old 12 June 2004, 18:51   #9
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we had this problem with a Ribcraft 7.8 ( the only problem we had with it as well, tasty boats) and cured it by fitting a couple of screw in drains at the transom near the side chambers. We had 4 screw in bungs in all and it sorted the problem. re drainage.

The real solution is to stop it getting in and Jeffs suggestion holds water for me (couldn't help the pun sorry)

If you are gonna senfd it back to humber can I quote you for the Towing
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Old 13 June 2004, 10:52   #10
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Quote:
Originally Posted by Rogue Wave

If you are gonna senfd it back to humber can I quote you for the Towing
You could try that, but isn't it a Scorp?

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