Submersible pumps are designed to be submerged in the water. The pumps are centrifugal pumps and their impellers are designed to throw water outwards. Submersible pumps have backward curve impeller blades. Several impellers are typically connected to a single shaft. The water enters through the impeller’s eyes and gets thrown out radially because of the centrifugal force involved. While submersible water pumps are effective, it is important to understand that they are not designed the same and not all of them can be suitable for your application. So, to ensure you find pumps that meet your needs, here are a few things you need to consider.
The type of water
Before purchasing a submersible pump, it is important to know the type of water you want to pump. Depending on the type of water you are pumping and the location, the specification of your ideal pump can change.
Pump for clear water
If you want to pump clear water such as rainwater and looking to pump it to your storage tank, you will need a narrow pump with a maximum grain diameter of about 5mm. You will also need to check how much dirt will be in the water.
Pump for dirty water
If you want to pump dirty water, you will need a pump ideal for pumping dirty water. These types of pumps should function correctly, even with dirt and mud. These pumps can be used to clean septic systems and sewage. Grain size is one of the most important factors you need to consider when choosing a pump from your submersible pump stockists. The desired diameter for such pumps is 10 mm to about 20 mm.
Pumps for wells
Pumps for wells are often used to pump water from the plumbing systems of your home. Not all pumps are suited for deep groundwater pumping. Submersible water pumps are used to pump water from deep wells.
Pumps for garden ponds
Submersible water pumps are needed to run your fountain and manage a clean flowing stream. The pumps can be placed directly into the water. There are different types of water pumps available for saltwater and freshwater.
Flow switch and float switch
Another important thing you need to consider before buying a submersible pump is a float switch. The switch is used to control the pump based on the level of water. In several instances, there is no water in the area that you want to pump water from. The switch is used to stop the pumping. You can cause serious damage when you run a submersible water pump with water. This is why a float switch will turn it off automatically when the water goes down to a lower level.
Flow switches are used to decide how much water passes through the submersible pumps at a given point at a time. Flow switches are of two types – the vertical switches are used in smaller pumps and often come in 10-inch diameters while the tethered switches are used to activate the pump and come in 14-inch diameters.
