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Old 10-31-2014, 09:19 AM   #21
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I have used, and still use, several of the Rule automatics. I suppose they have the "magic" switch. They have all worked fine. However, I dont consider anything under 1100 gph to be a bilge pump.
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Old 10-31-2014, 01:45 PM   #22
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I'm running three 2000 GPH units in my boat now. I'm always finding things stuck in the switches, no matter how much I clean my bilge. One area is very difficult to change out the switch or the pump. This is why I was considering an integral unit. Sounds like an awful lot of negatives so far, but at the very least, I'll change the type of switch.
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Old 10-31-2014, 01:49 PM   #23
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Quote:
Originally Posted by healhustler View Post
I'm running three 2000 GPH units in my boat now. I'm always finding things stuck in the switches, no matter how much I clean my bilge. One area is very difficult to change out the switch or the pump. This is why I was considering an integral unit. Sounds like an awful lot of negatives so far, but at the very least, I'll change the type of switch.
mount the unit on a long piece of something that can be snaked back and fastened in an accessible place..am about to do it for a new pump under my tranny...
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Old 10-31-2014, 02:21 PM   #24
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Larry, You might want to try the Rule RM-2000. It uses the magic water sensor which can't be jammed by debris. Of course the pump can still be jammed.

Here is a description of the switching system.

"no Float Switch Required. The Rule Mate series of
Bilge pumps feature a solid state water sensing
technology that eliminates the need for a separate
fl oat switch.
When water enters the bilge and reaches a certain height
(70mm) 2.", a sensor turns the pump on. After the water
is pumped out, another sensor shuts the pump off. The
sensor’s unique “field effect” technology is eco-friendly
because they only sense the dielectric constant of water.
In the event of an onboard oil spill, straight motor oil that
enters the bilge will not turn the pump on. Please note, that

this is
not an oil overspill system or a safety measure device."
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Old 10-31-2014, 02:34 PM   #25
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Didn't someone say that when technology advances far enough it looks like magic to a primitive culture?

"...“field effect” technology is eco-friendly
because they only sense the dielectric constant of water."

"The Dielectric Constant, or permittivity - ε - is a dimensionless constant that indicates how easy a material can be polarized by imposition of an electric field on an insulating material." Above from the Engineering Toolbox.

Will someone please hand me my loin cloth?
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Old 10-31-2014, 09:15 PM   #26
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Hop,

It's "Any sufficiently advanced technology is indistinguishable from magic."

Arthur C Clarke

One of my favorites.

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Old 10-31-2014, 09:24 PM   #27
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Thanks Rob. I read all of his books in jr. and senior high. Time to re-read them. It will be like the first time after all these years.
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