[C320-list] Seacock of the future

[Graeme Clark]

Dennis
Until this week I used to say the same!
Graeme

Sent from my phone. Excuse typos! 

> On 6 Aug 2020, at 17:45, Dennis Cookson <dennis at cooksons.net> wrote:
> 
> Yes, there is a fatal flaw in the idea of automated seacockery. It’s not enough to know that the seacock is open, because the strainer might be blocked with weed, or the impeller might be damaged. The only foolproof way to know that the raw cooling system is working correctly, end to end, is to lean over the aft port side immediately after starting the engine and check that water is being expelled along with the exhaust gases. 
> 
> I do this automatically now and won’t cast off before I’m satisfied with the flow rate.
> 
> Dennis Cookson
> #577
> 
> 
>> On 6 Aug 2020, at 16:19, Chris Nichols <cinichols at btinternet.com> wrote:
>> 
>> Perhaps the mechanism of demand feed regulator that divers use Could be adapted. That way only if the engine water pump sucks water does the valve open. 
>> I suspect the design would need to be really clever to avoid fouling
>> 
>> Chris
>> 
>>> On 6 Aug 2020, at 12:54, "ptormey at 4square.net" <ptormey at 4square.net> wrote:
>>> 
>>> Might make raw water suction open the valve.
>>> 
>>> Pat Tormey
>>> 
>>> ________________________________
>>> From: C320-list <c320-list-bounces at lists.catalina320.com> on behalf of John Brennan <jackbrennan at bellsouth.net>
>>> Sent: Wednesday, August 5, 2020 8:47:45 PM
>>> To: c320-list at catalina320.com <c320-list at catalina320.com>
>>> Subject: Re: [C320-list] Seacock of the future
>>> 
>>> I'm sure it could be rigged right now, but then you would have another @$%& cable to run through the pedestal!
>>> 
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>>> 
>>> Jack Brennan
>>> 
>>> 
>>> Sonas, 1998 Catslina 320
>>> 
>>> 
>>> Tierra Verde, Fl.
>>> 
>>> 
>>> 
>>> 
>>> Get Outlook for Android
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>>> 
>>> On Wed, Aug 5, 2020 at 4:00 PM -0400, "Graeme Clark" <cg at skyflyer.co.uk> wrote:
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>>> 
>>> Great idea Mike
>>> It’s a classic case of Murphy’s Law in action
>>> By the way 1969, not 68,
>>> Graeme
>>> 
>>> Sent from my iPad
>>> 
>>>> On 5 Aug 2020, at 17:02, Mike Rauh  wrote:
>>>> 
>>>> With the recent discussions about running the engine with the seacock closed I was thinking of a design for the future.
>>>> 
>>>> Imagine having a “stop engine” lever that has two positions.  The first pull upward stops the engine and then pulling up further closes the seacock.
>>>> 
>>>> To start then engine you would push downward on the lever.  The first stop would open the seacock and the second stop would allow the engine to start.
>>>> 
>>>> It wouldn’t be too complicated to design.  We landed men on the moon in 1968.
>>>> 
>>>> Mike
>>>> On Your Mark
>>>> #408   1997
>>>> City Island, NY
>>>> 
>>>> Sent from my iPhone
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