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What type of float is the best to use?
The Avocado floats are a good general float switch used for signal duty. They are available in suspended and pipe mount in varying lengths. But they are mercury switched, which means they have a stainless steel bulb inside of them that is hermetically sealed. The rocking motion of the mercury from side to side changes the position of the switch. They are available in 2 or 3 wire units, the 3 wire allows you to wire them either normally open or normally closed.
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