Reply
 
Thread Tools Search this Thread
 
Old 15 April 2016, 11:52   #1
Member
 
Toonribber's Avatar
 
Country: UK - England
Town: Newcastle
Boat name: Jacinda Too
Make: Avon
Length: 5m +
Engine: Yamaha 80hp
Join Date: Oct 2012
Posts: 44
Bilge Pump help

Hi Guys

I have an Avon 560 which I only manage to use for a couple of weeks a year as its now in the south of France. It's stored on land and only goes into the water for the time I'm there, however, I find the hull fills with quite a lot of water which isn't too much of a problem as its pulled out after 2 weeks and drained.

Problem is this year I'm going for a month so think I need a bilge pump. Just not sure how it's fitted. Do you cut away the upper deck grp and sink it into the void in the hull?

Any help appreciated
__________________

__________________
Toonribber is offline   Reply With Quote
Old 15 April 2016, 13:36   #2
Member
 
dubrus's Avatar
 
Country: UK - Scotland
Town: Glasgow
Make: Ribcraft 6.8
Length: 6m +
Engine: Suzuki df200
Join Date: Jun 2010
Posts: 2,093
When you say hull do you mean the deck or hull?

If you have water in the hull then you have a problem somewhere that needs sorting ASAP.

No water at all should be in the hull.
__________________

__________________
dubrus is offline   Reply With Quote
Old 15 April 2016, 14:07   #3
RIBnet admin team
 
Poly's Avatar
 
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 10,114
Quote:
Originally Posted by Toonribber View Post
Hi Guys

I have an Avon 560 which I only manage to use for a couple of weeks a year as its now in the south of France. It's stored on land and only goes into the water for the time I'm there, however, I find the hull fills with quite a lot of water which isn't too much of a problem as its pulled out after 2 weeks and drained.

Problem is this year I'm going for a month so think I need a bilge pump. Just not sure how it's fitted. Do you cut away the upper deck grp and sink it into the void in the hull?

Any help appreciated
If you want to fit a bilge pump below the deck (and don't have a hatch) then you will want to:

(1) Cut a hole for a small hatch - big enough to get your hand in at least.
(2) Sea the cut edge.
(3) Fit the hatch.
(4) Put wiring in (which may involve drilling a hole inside the console?) using a gland for any through deck fitting that will be exposed to the elements or flood water if you take a big wave. You need at least a live and ground feed, but if you want an auto pump normally you will want a third "manual" live feed too.
(5) Wire those in to switches (e.g. OFF-ON-Auto).
(6) Wire to the pump and fit pump via hatch.
(7) Connect the outlet from the pump to suitable sized hose, and feed through a deck fitting and then probably over the transom.

(Alternatively you could fit a manual pump - if its a very small amount of water you could even use a very small fitting and pump like this and this).
Bear in mind you need the pump pickup to be where water collects.

If that all sounds like too much hassle then it might be easier to work out how water is getting under the deck and seal up the gaps.
__________________
Poly is offline   Reply With Quote
Old 15 April 2016, 14:15   #4
Member
 
Toonribber's Avatar
 
Country: UK - England
Town: Newcastle
Boat name: Jacinda Too
Make: Avon
Length: 5m +
Engine: Yamaha 80hp
Join Date: Oct 2012
Posts: 44
Thanks for that.... It clarifies that I need to form a hatch and locate the pump underneath. Just out of interest what sort of depth is the void in the deck/hull typically?
__________________
Toonribber is offline   Reply With Quote
Old 15 April 2016, 14:57   #5
Member
 
dubrus's Avatar
 
Country: UK - Scotland
Town: Glasgow
Make: Ribcraft 6.8
Length: 6m +
Engine: Suzuki df200
Join Date: Jun 2010
Posts: 2,093
the void on a 560 ( i had one identical to yours) is about 10" deep from memory at the back.

i would urge you to find the culprit as if it is fresh water you only need to sika round all fittings probably.
__________________
dubrus is offline   Reply With Quote
Old 16 April 2016, 12:54   #6
Member
 
Toonribber's Avatar
 
Country: UK - England
Town: Newcastle
Boat name: Jacinda Too
Make: Avon
Length: 5m +
Engine: Yamaha 80hp
Join Date: Oct 2012
Posts: 44
That's great I now have a plan. Thanks all!
__________________
Toonribber is offline   Reply With Quote
Old 16 April 2016, 15:25   #7
Member
 
Country: Ireland
Town: Dublin
Make: XS650
Length: no boat
Join Date: Feb 2016
Posts: 165
Hi Toonribber.

Before going to all that trouble and cutting into the deck it may be worth spending a couple of hours trouble shooting.

I have Adventure 620, which had water in the hull. Turned out the previous owner had bilge pump fitted in the deck sump at the transom. The "craftsman" who fitted it drilled straight through the deck, didn't seal screws when fixkng bracket.
Subsequently a screw sheared and leak developed.
A simple fix of closing the offending holes properly and refixing bilge pump is solution.
It's being done right now and we'll be on the water in a fortnight.

As suggested above I'd find the leak-treating cause rather than symptom so to speak.
If the leak is below waterline then potentially the problem could become worse, the integrity of the deck could be stopping water coming up into the boat at present. Creating an opening will just let the boat sink deeper into the water if the pump fails.

Is the seal on the bung ok? Is the bung installation sound?
Check all deck fittings and reseal as necessary.

Hope this is useful.

(Of course, there are much more experienced ribbers than me on this forum who may have the benefit of experience that I don't. )
__________________
Iron Dials is offline   Reply With Quote
Old 18 April 2016, 08:50   #8
Member
 
Toonribber's Avatar
 
Country: UK - England
Town: Newcastle
Boat name: Jacinda Too
Make: Avon
Length: 5m +
Engine: Yamaha 80hp
Join Date: Oct 2012
Posts: 44
Interesting. There may be possible water ingress around the Bing as there is a bit of grp damage around the keel here due to a too shallow recovery!!! I know this needs attending to but still fancy some form of bilge pump.
I like the idea above of a small access seal/ Bung and a hand pump.

Any recommendations on what sort of Sikaflex to use when fitting into the deck etc. ?
__________________
Toonribber is offline   Reply With Quote
Old 18 April 2016, 08:51   #9
Member
 
Toonribber's Avatar
 
Country: UK - England
Town: Newcastle
Boat name: Jacinda Too
Make: Avon
Length: 5m +
Engine: Yamaha 80hp
Join Date: Oct 2012
Posts: 44
That was Bung by the way!
__________________

__________________
Toonribber 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 09:57.


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