Sorry to hear about your experience with Rule since I have two of
them. I'm whipping myself soundly for buying mercury switches after
preaching against them but they didn't have any clean ones in the
store. I'm glad to hear that the rolling ball ones are reliable.
Johnson makes one which I'll try to get a pair of them for the bottom
set.

I understand that the Rule's go because the repeated flexing breaks
the wires going to the switch. Is that consistent with your
experience?

I really appreciate the advice on the snubbing because incorporating
it was going to required a whole enclosure for the switch set up.

--

Roger Long



"barry lawson" wrote in message
...
I'm not sure that there needs to be any snubbing in this
arrangement.
For one thing, a 30 amp contact should easily handle the surge of 12
volt
bilge pump circuit being broken.
But mainly:
the relay connects across the hi level switch (after that switch has
closed)
then when the hi level switch opens, the relay stays closed
and after the lo level switch opens (stopping the pump)
the relay opens.
So the relay never sees any starting or stopping load.

wot sort of switches are you using? I've had a terrible run with
Rule. The
most reliable one I have sounds like it has a ball inside that runs
along
and makes contact when the body tilts.

Roger Long