A few years back, a boat at our club with a drip less shaft seal also
had a sudden and serious failure causing extensive flooding inside the
boat before it got hauled. It happened within an hour after the boat
was launched in the Spring. Someone noticed the boat's bow "boot
strip" was below its waterline and since the boat was 'open', club
members got aboard and began pumping......both the electric bilge pump
and the manual cockpit pump could not keep up....a third portable
electric pump came from somewhere (don't know its origin) but it helped
to keep the boat afloat until the yard staff retrieved its cradle to
haul the boat.
What little water that comes into my bilge with a conventional stuffing
box is not a big inconvenience compared to the possibility of a
catastrophic and sudden failure of a drip less shaft seal.
Rob Abbott
AZURA
C&C 32 - #277
Halifax, N.S.
On 2018-10-20 8:41 AM, Steve Thomas via CnC-List wrote:
I don't know if this is brand-specific, or which brands were involved, but
while I had my boat hauled out and was in the process of making a decision on
what to do about the packing gland on my boat, 2 boats in the same marina had
serious leaks due to broken graphite parts in their dripless packings. One of
them sank and the other managed to get hauled out in time. I did not know that
such a catastrophic and sudden failure mode even existed up til then. No vendor
or manufacturer's literature that I had seen even mentioned such a possibility.
How such an event could be handled at sea I did not know. Anyway, it freaked me
out and I decided to install a new conventional packing gland instead.
Steve Thomas
C&C27 MKIII - Ontario
C&C36 - Florida
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_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
to send contribution -- https://www.paypal.me/stumurray
