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Water in the Bilges

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redlion View Drop Down
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    Posted: 05 May 2017 at 15:07
While preparing our 315 (2006) for launching yesterday we pumped and sponged out about 50 litres of non salty water . The water was taken mostly from the hatch at the foot of the steps where the bilge pump lives (positioned too high to be of use),but also under the engine, under the floor in the big locker where the toilet sea cocks are and in the furthest forward space under the v bed in the forecabin. 
The boat is stored on the hard on the west coast of Scotland and we did not use an electrical humidifier over the winter but relied upon 6 caravan moisture traps , all which were full of water and refilled half way through the winter. 
Is this likely to be just condensation? If so would a made to measure boat cover improve the situation?

P.S. a £10 12v chinese water pump from e-bay was a godsend.
It,s not over till the fat lady drowns
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grumpydatagit View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote grumpydatagit Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2017 at 16:02
hi

I had my 315 2007 out on the hard for the first time last year 2015/ 2106 as I bought it in the summer and wanted to change the sea cocks Whilst I was rewiring some bits I pulled up the cabin sole and found a lot of water - again fresh but not that amount. But I did notice that the forward cabin left locker under the bunk was the only one with mold in it. I'm not sure if yours is the same but the cable in the chain locker that feeds the bow light on mine was not sealed as it comes through the bulkhead. I put some plumbers mate around it to seal it off. The other thing is, I think when it is on its keel the boat is slightly bow up so the water runs back into the bilge pump area.
Tross
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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2017 at 17:19
Originally posted by redlion redlion wrote:


P.S. a £10 12v chinese water pump from e-bay was a godsend.

I put a  hoselock connector in the shower line just before the shower pump. Now I can just disconnect the shower & connect a 10 ft hose hose which i use to hoover up water in any areas in bilges & under engine etc. using the shower pump.
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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grumpydatagit View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote grumpydatagit Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2017 at 17:21

Cool idea :-)
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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2017 at 17:29
Originally posted by grumpydatagit grumpydatagit wrote:

hi

I had my 315 2007 out on the hard for the first time last year 2015/ 2106 as I bought it in the summer and wanted to change the sea cocks Whilst I was rewiring some bits I pulled up the cabin sole and found a lot of water - again fresh but not that amount. But I did notice that the forward cabin left locker under the bunk was the only one with mold in it. I'm not sure if yours is the same but the cable in the chain locker that feeds the bow light on mine was not sealed as it comes through the bulkhead. I put some plumbers mate around it to seal it off. The other thing is, I think when it is on its keel the boat is slightly bow up so the water runs back into the bilge pump area.
Tross


Whilst you are dealing with the wire.
If you do a head stand in the anchor locker you will see that the bulkhead in the back of the anchor locker is not sealed to the underside of the deck. i filled that joint with ordinary builder's foam as it made me dizzy working upside down.
I found out when one day i reversed out of my berth & did not know that the metal fairing over the drain hole shaved a piece of wood from the pontoon . This blocked the hole & in rough weather the anchor locker filled up & the water then went over the bulhead & soaked all the forward berths & the stbd saloon berth & the crews clothing.

Whilst you are looking check the nuts on the underside of the aft 2 posts of the pulpit. Mine should have been  6mm nuts but the lazy person who fitted it used 8mm nuts & just put a wadge of sika around the nut to hold it in place. When the forward post failed ( As several 31 series pulpit posts have done) you will have to remove the pulpit to repair it. Then you will have the problem of getting the aft 2 nuts off if they have been bedded in sika. It is a bit worrying to know that your crew may have been pulling on a pulpit held on by 2 lumps of mastic.


Edited by samuel - 05 May 2017 at 17:30
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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Pieterman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pieterman Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2017 at 21:08
This is a very interesting question. I also have soms water in the bilge, but not often. Only when sailing port side in rather heavy seas and wind, so the 315 has a bigger inclination. I always had the feeling the water comes from the anchor locker, but up to today I was not able to find the cause.
Do you thinks the bowlight cable through the bulkhead can cause this water in the bilge?
Pieterman
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Richard M View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Richard M Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2017 at 23:20
Hello Pieterman

I had similar issues with my H 400e initially. Condensation formed on the outside of the water tank under the forward berth. Putting slatted suspension under the mattress helped somewhat. Additionally there was a small amount of water getting into the pulpit via the 2 holes where the electric supply wires exited for the red & green navigation lights. This water tricked down the outside of the timber panelling either side  of the berth. This was easily cured by applying silicone sealant to the holes - so you may well be correct in your suspicion. Also I always seal up any swan neck deck fitting (where the cables exit from the base of the mast) with children's putty (also known as "plasticine" in the UK). 

These measures seemed to solve most of the water ingress problems although I struggled to fix a persistent small leak from the fresh water piping under the galley sink. This was made a little more difficult as a result of the Jabsco inline water filter being sited there - but in due course this was also sorted. 

One further item to check might be the calorifier; this will usually cause small amounts of water to leak under certain conditions. There should be an overflow pipe. A simple fix here is to find a suitable receptacle (a small washing up liquid bottle worked for me) to contain the water and to insert the pipe into it. Usually all I had to do was to empty the receptacle at the end of the season.

Good luck!
Richard M

(S/Y BrightStar - H 455 #90; ex S/Y Providence - H 400e #290)
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Pieterman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pieterman Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2017 at 17:25
Thank you for the overview Richard. Water in the bilge is never fine. 

(You can find me head down in the anchor locker this week. Smile)
Pieterman
Hanse 315 (2007)
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Talis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Talis Quote  Post ReplyReply Direct Link To This Post Posted: 20 March 2018 at 11:26
I had similar problem on my 325. I found that water in bilge come from heads. Especially when shower is used. Behind toilet where hose enters hull is big opening and from there water gets into bilge. Where bilge pump is located you find small holes through floor support. They are mentioned for bilge water movement from one section to another. Problem is that behind this hole hull is deeper and water stays there and you can not even see it. I used oil suction pump and i got 15-20l of water from there.
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Martin&Rene View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Martin&Rene Quote  Post ReplyReply Direct Link To This Post Posted: 21 March 2018 at 17:48
I will give you a view on what my boat is like in a couple of weeks as it is in Largs, so the conditions are similar.  I doubt it is condensation, as we have never had major problems over a winter and our moisture traps are normally only half used.  

My first look would be at the Plastimo shower head in the transom, as we had one crack in the cold winter a few years ago.  It is a common problem as the chandlers had been cleared out of stock in just one day.   I fitted a quarter valve on to the start of the flexible hose, fastened to the inside of the transom.   Thankfully we heard the pump running and stopped it before too much water poured back into the yacht.  

A friend did have problems a few years ago at Rhu in his Sigma 33, as the snow and cold weather ended up cracking the cockpit drains pipes.  The subsequent thaw and later rain in the cockpit meant the water in his yacht was over the floorboards.   

With regard to the calorifier over-pressure valve, it took me months to realise that was the problem of water by the heads. I have solved it by running a piece of tubing from it up and to a hole I drilled in the side of the Plastimo shower fitting in the transom, so any water now runs overboard.
Martin&Rene Hanse 341 Dipper Wheel steering, 3 cabin layout, normally based in Scotland
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