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West Wight Potter Mailing List maintainer
dfarrell@ridgecrest.ca.us
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>Eric:
>
>Put a big inverted "U" in the line inside the boat and then you can place the
>discharge lower on the hull. That way the syphon action of the U will overcome
the
>head pressure while still protecting the boat from ingressing water when not
>pumping.
ok, that makes sense. Hadn't thought about that option.
>(....friction neglected as in Physics books)
I wonder though if the restriction caused by a longer line would be more of
a disadvantage than the risk of taking in water due to a low discharge. On the
other hand, I'm convinced that, unattended, a small bilge pump on a battery
can't possibly keep up for long with the inflow of a major breech, and that
for practical purposes the pump will be used mainly for draining the small amounts
of water that collect as a result of using the boat and from rain. So the bilge
pump for me is less of a safety thing and more of a convenience thing.
I guess i shouldn't obsess over it too much - the positive floatation should
take care of any miscalculations :)
>How the hell do you manage to send messages so that they come in several hours
>earlier then the rest of the mail. Is you computer clock wrong or are you
in
>Australia or something. I have to get to the bottom of this or I could develop
some
>kind of phobia......
During the day I sent messages from my ISP's web-based emailer. I will hit send
on this one at about 2:55pm PST - email me in private about the time stamped
on it when it arrives and I'll bring it up to my ISP. Any chance its getting
marked in UTC?
http://www.nwlink.com
This archive was generated by hypermail 2b29 : Fri Mar 31 2000 - 03:27:10 PST