--- In amphicar-lovers@y..., Mike Israel
wrote:
> John,
>
> WIth the exception of the RuleMate line all of the
> RULE automatic bilge pumps work by running briefly
> every few minutes at reduced power. They are computer
> controlled so that if the impeller senses resistance
> (i.e. water) it kicks in the pump. Otherwise it goes
> dormant for the next few minutes. Power drain is
> minimal (I left mine on for weeks once with no
> significant battery drain). More costly than a float
> switch but it sounds like what you are looking for.
> Check out boatersworld.com or any other marine supply
> shop. They will all carry Rule pumps.
>
> Mike Israel
> 65 Amphi (white)
> Amphi List/Digest Admin
Hi Mike,
I saw those Rule pumps the other day and thought their sensing system
was a bit weird. I would think they would make a bit of noise
(disturbing one's quiet lunch on the water) when they did their
sensing thing. Also that system would draw more current than a
pure electronic sensing circuit. Perhaps they found that electronic
probes get fouled by the oil and stuff in the bilge.
Thanks,
John Friese
>
>
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