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How a float switch works: A simple guide

POSTED ON April 22nd, 2025 Helen Yapp

If you’re using a solar water pump, maintaining the right water level can be essential. Whether you’re filling a tank, trough, or reservoir, a float switch can help automate the process and prevent both water waste and shortages. But how does a float switch actually work? Let’s break it down.

The Components of a Float Switch

A float switch consists of three key parts:

  • A cable – connects the switch to your system.
  • A weight – positioned to set the range of movement.
  • The float – which contains the actual switch mechanism inside.

How It Works

Setting up a float switch is simple. You secure the weight at a point between your desired maximum and minimum water levels. This defines the movement range for the float, which then rests on the water’s surface.

As the water level drops, the float lowers with it. Once it reaches a certain point, the float tilts, activating the internal switch. This sends a signal to your solar water pump to turn on and start refilling the water.

As the water level rises, the float moves upward. When it reaches the pre-set high point, the float tilts back, switching off the pump and stopping the water flow. This cycle ensures a steady water supply without overflow or unnecessary wastage.

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Why Use a Float Switch?

A float switch is an excellent addition to your solar water pump system because it:

  • Maintains a consistent water level – ensuring a steady supply.
  • Prevents water waste – avoiding unnecessary overflow.
  • Automates the pumping process – reducing manual monitoring and control.

A Solution Designed for Your Needs

We’ve listened to our customers, and we understand the need for a reliable float switch that works seamlessly with solar water pumps. That’s why we’ve developed a float switch specifically designed and tested for our range of pumps.

This float switch is now available in our webshop – making it easier than ever to manage your water supply efficiently and effectively.

Check it out today and take control of your water levels with ease!

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