How Do I Turn Off My Solar Pump?

The sun is shining, and your solar water pump kit is working hard to bring water where you need it most. But if your crops are all irrigated, your livestock’s water tanks are full, and you’ve topped off your storage reservoir, it may be time to turn it off.  Since you can’t stop the sun from shining, there are several other ways you can control when your pump runs.

Let ’Er Run

The easiest way to turn your solar pump off is to wait until nightfall. Once the panel is no longer receiving energy from the sun, it will turn itself off.  If you don’t need any more water but want to simplify operations, you can divert excess water. For example, if your pump runs to a water storage tank or a water trough, you can have an overflow pipe to direct the water that would spill over. It can run to an orchard, strawberry patch, or other water-loving crop that would enjoy the extra water, or it can run to another holding tank or pond or even back to the original water source.

Just Unplug It

If you don’t need to automate your pump, you can manually unplug the solar wire harness whenever you don’t need the pump to run. This disconnects the solar panel from the pump. Whenever you’re ready to run the pump again, just plug it back in.  If you choose this option, you’ll need to protect your solar wire harness from the elements, especially rain or dew which could corrode the plug.

Run Only When Needed

If you don’t want to run the pump all the time, but want to automate the pump to turn on when you need it, installing a float switch is a good option. Float switches turn the pump on and off based on water level. You can install the float switch in the water where the pump is located, if you want the pump to turn on and off based on available water supply, as shown in the illustration. You can also install the float switch in the tank where water is being delivered, if you want the pump to turn on when the water level gets too low and off before the tank overflows.

The float switch is wired into the control panel (instructions on how to do this are included with the parts). The float switch wire is then secured to a pole that is secured in the body of water of which you want to control the level. The point you secure the wire will be below water level, using the clamp included in the kit. This will leave the floating part of the float switch free to move up and down with the water level. When the float is above the clamp, the control panel switches the pump on or off (depending on your setting), and when the float level sinks below the clamp, it switches the pump off or on.

For more details, click the “More Info” tab to download the manufacturer’s installation instructions.

It’s simple to pump water when you need it, and to turn it off when you don’t!

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