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From: steve weinstein (no email)
Date: Fri Sep 05 2003 - 23:42:14 EDT
Andina,
I had thought about something like that until a friend suggested an in-line
check valve immediately downstream of the bilge pump. I installed one two
years ago. Instead of 15' or more of hose with the accompanying volume of
backflow draining back into the bilge now I only get about a tablespoon
worth of water draining back after the pump shuts off.
I know there are a lot of folks who don't like the concept of a check valve
in the bilge hose but it's worked well for me. As far as your concept of the
new turn-off delay switch I'm not sure of it's potential advantage over a
check-valve. I'm curious about one point though. Without revealing any
proprietary secrets how do you get the pump to run for 60 sec without any
battery drain? Unless it includes some sort of tiny self-contained battery
which powers it and then gets re-charged when the pump is drawing amps while
the float switch is engaged.
Steve Weinstein
Hydro-Therapy
1981 Cherubini Hunter 33
Sailing out of Oyster Bay, N.Y.
----- Original Message -----
From: <>
To: <>
Sent: Friday, September 05, 2003 9:10 PM
Subject: lv-ab: Re: Bilge pumps and left overs
> We have a design on the boards and a prototype built of a bilge pump
> turn-off delay.
> It is a little block of epoxy with two leads coming out that you connect
> across the float switch.
> It continues to run the bilge pump for 60 seconds after the float switch
> turns off.
> It draws no power from the battery.
> We haven't gone into production because we were concerned that it would be
> too expensive.
> It would retail for about $55 - perhaps $45 on discount.
> POLL: would you spend that much for such an item?
> Please respond by email to so we don't clutter the board.
> I'll publish the results later if anyone is interested.
> Andina Foster,
>
>
>
>
> > Has anyone got a good suggestion for a bilge pump style that will
suck
> out
> > all the water instead leaving an inch or more water in the bilge when
the
> > "float" switch shuts off.
> >
> >
> > Regards
> >
> > Arild
> >
>
>
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