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The float switch I am talking about is mechanical. There is a magnet in the float, and its rising or falling due to water level opens or closes the circuit.
Both of the float switch and the float valve can fail by something blocking their action or by build up on the moving surfaces. I don't like float valves in saltwater environments because the valve itself can be blocked. Since the float switch does not have the valve, that possibility of failure is removed.
I like the double switch controllers because they have the extra float for backup if something goes wonky with the first switch..
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The reefer formally known as Lefty
Ink is the way; the way is ink.
Last edited by Thales; 01/03/2008 at 03:07 PM.
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