Gawd that's clever!
However, just as I'm rediscovering how much fun electricity can be,
I've come up with a non electrical solution.
The float switches should be protected from sloshing and debris so I
have to build an enclosure anyway. If I just put a PVC pipe siphon in
it like this:
http://home.maine.rr.com/rlma/Siphon.jpg
it should work just like the electrical circuit.
Anybody need a couple of headlight relays with sockets and snubber
components?
--
Roger Long
"Ian Malcolm" wrote in
message ...
Hmm, if EITHER switch fails open, you loose the pump. If you move
the pump +ve to the JUNCTION of the two switches (dont change
anything else), then only the top switch is critical.