Re: [PSUBS-MAILIST] Leak Alarm

["Dan H." <jmachine@adelphia.net>]

Stan,  I'm not familiar with a DIY battery.   Please explain more.

I tried several circuits from the just plain lights to transistors to
operational amplifiers.

The water completing the circuit with a light bulb wasn't sensitive enough,
neither was the two transistor circuit I tried.  The Op amp was so
sensitive, all I had to do was breathe on it and it would go off.  I tried
to tame it down but it was still to sensitive to be sure I wouldn't get
false warnings.

The pods I'm sensing are battery pods and motor pods.  Not a situation for a
sump pump.  Any alarms mean I have to disassemble the pod to inspect them.

Thanks,
Dan H.
----- Original Message -----
From: "dino snider" <dinosnider666@hotmail.com>
To: <personal_submersibles@psubs.org>
Sent: Friday, March 05, 2004 12:35 PM
Subject: Re: [PSUBS-MAILIST] Leak Alarm


> what about the  DIY zinc air battery? place it low, when no air - water
> instead - no current. flips light on. or just use light flashing on
> capacitor rest of time - when it stops, turn on sump pump.
> --
> you said
> >Just a thought, but would a strategically placed spark plug work in line
> >with an indicator bulb?  Open circuit (no light) indicates no water in
the
> >gap, closed circuit (red light?) means water is present.  You can get
them
> >with a platinum electrode, easy to replace, and inexpensive...
> >
> >Stan
> >
>
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