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Old 11-05-2019, 14:14   #1
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Sea toilet identification

Does anyone know anything about this sea toilet?
Very simple, no holding tank.
Open lid, lift the lever and you can watch fish swimming by underneath the boat.
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Old 11-05-2019, 19:16   #2
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Re: Sea toilet identification

I've never seen anything quite like it in my 30+ years in marine sanitation. So I'm certain it has to be a home made concoction, but as soon as I do someone will post a website for the mfr.

Does the handle on the top of the dome have any function other than something to raise it to open it? What does the shiny steel thingy do...does it raise the whole green ring? I see a piece of clear corrugated hose behind it...does it have any function? There appears to be some kind of piping below the mounting plate, but you say it's open to the sea.

If you have more info to share, please do! And if you have more photos, not only do I hope you'll post 'em, but please send me higher resolution copies via email for my files 'cuz I'm fascinated by it!


And I just realized that you've just joined our merry band today...welcome aboard!


-Peggie
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Old 11-05-2019, 20:08   #3
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Re: Sea toilet identification

Ex British Rail?

Mounted frd as it is it would be an industrial strength bidet when going to windward...

Possibly designed for canal boats?
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Old 11-05-2019, 20:18   #4
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Re: Sea toilet identification

A further thought... It would appear to be evacuated by pushing down on that rubber dome...
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Old 11-05-2019, 21:10   #5
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Re: Sea toilet identification

A boat I raced on in the 70's had one, we just called it a "Ball Head" toilet, the most simple and effective head I have used, from memory, (which is not good) the head sat on the gate valve, after use you closed the top, opened the sea cock, the pushed the rubber "ball" into an inverted state, which pushed the entire contents out.
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Old 11-05-2019, 21:14   #6
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Re: Sea toilet identification

Quote:
Originally Posted by peghall View Post
I've never seen anything quite like it in my 30+ years in marine sanitation. So I'm certain it has to be a home made concoction, but as soon as I do someone will post a website for the mfr.

Does the handle on the top of the dome have any function other than something to raise it to open it? What does the shiny steel thingy do...does it raise the whole green ring? I see a piece of clear corrugated hose behind it...does it have any function? There appears to be some kind of piping below the mounting plate, but you say it's open to the sea.

If you have more info to share, please do! And if you have more photos, not only do I hope you'll post 'em, but please send me higher resolution copies via email for my files 'cuz I'm fascinated by it!


And I just realized that you've just joined our merry band today...welcome aboard!


-Peggie
Peggie, the shiny steel thing at the front of the seat is the seat lock, it makes the top, which from memory incorporates the seat, seal. The top/seat and
bowl need to have an airtight seal to expel the contents.
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Old 12-05-2019, 07:13   #7
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Re: Sea toilet identification

The OP's saying he can "Open lid, lift the lever and you can watch fish swimming by underneath the boat" sounds like it's a direct drop into the water. But your description makes it sound like a precursor of the Blakes Lavac.

Lavac.qxd - lavac.pdf (see page 13)


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Old 12-05-2019, 13:46   #8
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Re: Sea toilet identification

Thanks for all your replies. Bruce Ks description is pretty much spot on. My boat is from round about 1970ish and Im assuming it was original fit.

The lever on the right operates a flap-type valve, directly through a very short vertical pipe through the hull. No other piping involved.

Method of operation is...
1. With lid closed, briefly lift lever on right to let a little water in.
2. Lift lid and do necessary
3. Close and clip down lid
4. Lift lever and swiftly push down dome, ensuring small hole in black top handle is covered.
5. Release lever and pull dome up.

Really simple and would be easy to clear if it ever blocked. Only disadvantage is its not suitable for inshore, harbours, anchorages etc.

Wondering how safe it is and whether I should replace it.

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