*mercury float switch*
http://www.aquaticeco.com/index.cfm/...11432/cid/2965
~ jan

Thanks - Jan, which device should I buy? I looked at the website and there
are lots of options. I have a Sequence 7100 pump. How does it work? Do I
plug the pump into this gizmo? Gary

It plugs into the outlet and you plug your pump in behind its plug. The
float switch needs to be in the water. I use the one that when the water
level drops so far it cuts the power to the pump. In your case, with a pump
that is out-of-the-water, you may have to use an extension cord depending
on where your pump is in relation to pond and plug-in. ~ jan


~Power to the Porg, Flow On!~