how many oles in your boat?

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nimbusgb

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Not wanting to hijack the thread about fitting a paddlewheel log .......

Excluding propshafts and rudder tubes, how many holes does your boat have below the waterline?

I had 16 up to a couple of seasons ago when I managed to close off 4 ( I removed 3 basins and a depth sounder and glassed the holes up! 5 basins on a 39 foot boat is ridiculous! )

I have a variety of wood plugs in a cupboard but next season I must organise a 50 - 80 mm one as an emergency plug for the FLS!

Anyone with a wood lathe want to knock one up for me?

1*fwd cabin basin ( removed and glassed )
1*Forward Looking Sonar FLS (60mm )
2*forward heads toilet and basin
1*log
1*depthsounder ( removed and glassed - now shoot through hull )
1*Fridge keel cooler
1*keel anode ( only a 10mm bolt hole )
1*galley sink drain
1*galley sink foot pump inlet
3*aft heads toilet and sink
1*aft cabin basin port ( removed and glassed )
1*aft cabin basin stbd ( removed and glassed )
1*engine intake
 
Last edited:
Five:

Toilet inlet, Toilet outlet, Sink outlet, cockpit drain, engine inlet

As it happens yesterday I took the wooden bungs out of the locker and started to work out which fits which hole. Turns out that I have 2 holes much smaller than the smallest end of the bungs so need to shave a bit off a couple of them.


I was wondering how best to tie them to the seacocks without drilling a hole to put the rope through.
 
These are all in the hull and do not include vents on deck or coamings.

Below Water Line
1 x Log
2 x Forward Heads
1 x Forward Wash Basin
1 x Galley Seawater Pump
1 x Galley Sink
2 x Cockpit Drains
1 x Engine Raw Water Inlet
1 x Ex Generator Raw Water Inlet
2 x Aft Heads
1 x Aft Wash Basin
1 x Engine Exhaust (on the water line)

Total 14 below the water line.

Above Water Line
1 x Aft Shower Sump Outlet
1 x Manual Bilge Pump Outlet
1 x Engine Driven Bilge Pump Outlet
1 x Lazaret Locker Drain
1 x Gas Locker Vent Drain
1 x Diesel Heater Exhaust

Total 6 above the water line

Grand Total of Holes in Hull 20!
 
PhillM said:
..... I was wondering how best to tie them to the seacocks without drilling a hole to put the rope through.
Click to expand...

Drill a very small hole in the top, poke in a bit of string, squirt some epoxy in.
 
brass or stainless eye hook screwed into the circumference of the flat top (at the side, so that you can still bash the conical section into the hole if needed).
 
Below Water:
1 Inlet
1 Outlet Bilge/ Toilet,
1 Sink,
1 Log
1 Echosounder

5 Below

Above water:
Exhaust,
Cockpit Drains x 2
2nd Bilge Pump
Gas Locker Drain.

5 Above

10 Total

BlowingOldBoots said:
Total 14 below the water line.

Total 6 above the water line

Grand Total of Holes in Hull 20!
Click to expand...

Suddenly I feel all snug then I remember we only need one to fail to have a VERY bad day.... :eek:
 
Bellow water line.

2 for head one inlet one outlet.
1 for gally sink.
Three total
There was also an impellor for log. but though this was a through hull fitting I would not count it as a hole. As it is efectively plugged.

Above water lots.

Of course boat was only 24ft with an out board.
 
I want to know if my guess @ FLS is right, Forward Looking Sonar, Fishfinder?

My Centaur has 7 holes below the waterline, Loo in and out, galley sink, engine coolant in, cockpit drains x2 and the log impeller which is the only one without a seacock.
The engine exhaust and bilge pump discharge above the waterline.
 
Was:
3 sinks
4 for the toilet hoses
1 engine intake
1 speed sensor

Now:
1 sink
4 for the toilet hoses
1 engine intake
1 speed sensor

By spring launch:
3 for the toilet hoses
1 engine intake

We had 8 seacocks all of which I used to shut off when leaving the boat and all would need servicing annually. The engine intake we can't alter, the sinks now drain above the water line or in the aft heads it now drains into the toilet which means we fresh water flush - much nicer for an en-suite heads - which means that toilet inlet pipe can also go. Then we add in-line ball valves to the forward toilet hoses and there's no need to use the seacocks there.

The speed sensor? Hah - when it worked you never trusted the reading because you knew how quickly it gummed up, when it didn't work it was just another useless hole in the boat.
 
Below

Heads in
Heads out
Engine water in
Log impellor
Echo sounder

Above

Galley Sink
Electric bilge pump
Manual bilge pumps x 2 (one fitted recently by me...the existing was under the chart table so could not be reached from the helm, I thought it better to have another one rather than move the existing)
 
6:
- heads in and out
- sink in and out
- engine intake
- log

The log has to go. This year I never got round to swapping out the blanking plug for the paddlewheel, and I can't say I ever missed it.
 
Below the waterline
two for heads
one engine
one sink
log and echo sounder

Above the waterline
two cockpit drains
Engine exhaust
Webasto exhaust
bilge pump
water tank vent (but its very small!)
 
FLS = Forward Looking Sonar ... sorry!
The transducer for this beast is 60mm in diameter and it sticks out of the hull about 2 inches.

1152_2.jpg
 
Wow, some of you have a lot of holes in your boat. A seachest, or water manifold, would help to minimise the holes and seacocks. Perhaps one on water in and one on water out:
 
Salty John said:
Wow, some of you have a lot of holes in your boat. A seachest, or water manifold, would help to minimise the holes and seacocks. Perhaps one on water in and one on water out:
Click to expand...

Not seen one of those before, interesting idea but completely unnecessary because we all check the integrity of our seacocks regularly.....don’t we? :-)

Contessa 32…

2 - cockpit drains
1 - Engine
1 - main sink
1 - forward sink
2 - heads
2 - transducers

Total-9
 
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