4614Re: [campernicholson] Re: Deep Sea Seal
- Feb 5, 2009Graham,
I stand corrected. Nevertheless, that bellows is made out of lighter, more flexible stuff than the heavy, below-the-waterline rated stuff used with a conventional stuffing box. True?
On Thu, Feb 5, 2009 at 3:55 PM, Graham Norbury <gnorbury@...> wrote:
Its not the water pressure on the bellows that keeps the pressure, but
the springiness of the bellows themselves. They typically have to be
replaced every 3-4 years.
O. R. Armstrong wrote:
> FWIW: Dripless is certainly attractive, but it is accomplished by
> water pressure *inside* the hull expanding a flexible bellows. Since
> the bellows must be very flexible for the system to work, it cannot be
> made out of a thick, reinforced hose. So a little springy piece of
> hose is all there is between my boat and Mr. Jones' Locker? I opted
> for the Buck Algonquin stuffing box (a beautiful piece of equipment,
> if you're into plumbing) and a substantial piece of black hose,
> knowing that if I spring a leak out there, somewhere far from help, I
> can probably fix it.
> p.s. On the recommendation of my yard, I used conventional flax
> packing coated with Tef-Gel.
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