How does a VLFS (variable level float switch) or a wired float switch work?
” The pumps that come with a variable level float switch are non-automatic pumps. You just attach the float switch and the pump will behave like an automatic pump. However, the VLFS allows you to specify the water level (between 6″ and 36″) that will turn on/off your pump. This is different than the normal automatic pumps that have a preset water level that turns them on and off. Since the VLFS is detachable, the pump can also be used as a non-automatic pump. “What’s the difference between an automatic and non-automatic pump?” An automatic pump has a built in float switch that will turn on the pump automatically at a fixed water level. After the water is pumped out to certain water level (a preset level), the pump will turn itself off. A non-automatic pump has no integral switch, and so would turn on when plugged in, and off when unplugged. A separate control like a piggyback float switch (variable level float switch) can be installed on non-automatic pumps to provide a switch with fle
