Blakes seacock getting tighter

If you don’t fancy doing it afloat, is the anywhere you can dry out, like a scrubbing grid or harbour wall? This job could easily be done between tides.
 
I don't see that any of that makes the conical plug valve superior to that ball valve. ......

At the sizes used on a boat, true, I would not lose any sleep over a correctly specified ball valve on my boat. However, I would not go out my way to replace a Blakes type plug valve, many are in excess of 40 years old and with minimum effort to keep functional. That has got top be good a good service life. Parasitic losses due to shape are irrelevant at the flow rates we are used to on boats.
 
Being a cautious type I actually open and close it every time I leave the boat - I live aboard so effectively that is pretty much every day.

That's likely the cause of premature de-greasing. I'd do once a week.

If your hoses and double s/s clips aren't to be trusted when you're off the boat, then do you trust them when you're asleep?
 
That's likely the cause of premature de-greasing. I'd do once a week.

If your hoses and double s/s clips aren't to be trusted when you're off the boat, then do you trust them when you're asleep?

If I'm asleep on board and water starts to come in, for whatever reason, chances are that I'd wake in time to do something about it. Not so if I'm elsewhere.
 
Another tip for 'temporary bungs' is to use the cylinder of silicone that almost invariably results when the unused sealant goes solid. If necessary, it can easily be carved to fit and can be 'screwed' by hand into an opening without the use of a hammer; they seal very well because they adapt to uneven bores. I prefer them to the traditional wooden bungs.

That's a good idea - thanks for sharing it!
 
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