A float switch is just what the name implies. It is a switch used to control an electrical device like a pump, and is operated by rising and/or falling water levels. They can be made to close on rise or open on rise, depending on the needed application. Here is an example: http://www.alliedelec.com/search/pr...=30980760979&gclid=CO2Wpr7w1sECFcpzMgodOVAA1w
There are several different types for different applications. The one linked is easily mounted in a sump. Float switches typically can carry very little current so they can be used to operate the coil of a relay which in turn is used to turn on the pump circuit. Two float switches can be used as a Stop/Start circuit to prevent "bounce", which can cause sloshing in the sump from cyclic starting and stopping of the pump with just one float switch. If needed, I can provide a circuit schematic and parts list to install one. I provided a similar circuit design for one of our AC members a couple years ago for an auto water change system he installed.
Mark
There are several different types for different applications. The one linked is easily mounted in a sump. Float switches typically can carry very little current so they can be used to operate the coil of a relay which in turn is used to turn on the pump circuit. Two float switches can be used as a Stop/Start circuit to prevent "bounce", which can cause sloshing in the sump from cyclic starting and stopping of the pump with just one float switch. If needed, I can provide a circuit schematic and parts list to install one. I provided a similar circuit design for one of our AC members a couple years ago for an auto water change system he installed.
Mark
