How To Choose The Right Pump For Stormwater

1. How To Choose The Right Pump For Stormwater Selecting the right stormwater pump is critical when it comes to pumping groundwater or stormwater. The most common reason why some pumps fail is due to a misstep when choosing a pump. Using the wrong pump can cause critical errors and this could be expensive for you. Know your application Before choosing a pump for your application, you should know your application. What type of water do you want to pump and where do you want to move it? You should start by looking at the distance, elevation change and flow. The suction elevation from the stormwater to the eye of the impeller and the elevation of the discharge from the eye of the impeller to the destination of the water should be known before choosing the right pump. The distance determines if you need to increase the line size to reduce the friction loss due to resistance. All hoses and pipes experience friction when the liquid moves through them. Two things that impact friction are the velocity and the total distance of the hose or pump to the delivery point. You should also know the suction point to the destination of the water. If pumping into a system that needs a particular pressure, then the pressure required should be changed into equivalent feet of the static head. Factors for the right stormwater pump It is crucial to know the type of water you are pumping and how quickly you want the water to be pumped before choosing a pump from your stormwater pump supplier. If it is stormwater you are pumping then it is important to know that it could have solids in it and this could include large pieces of trash. Groundwater or stormwater will have silt, rocks, mud and sand. In stormwater and groundwater applications, you should know the pH is imperative if the water has mixed with chemicals.

2. If you are pumping deep groundwater then you should consider electric submersible pumps. On the other hand, if you are pumping groundwater that is less than 25 ft. deep then you should consider well-point pumps. They are designed for long pipes in the ground. Additional considerations After knowing every aspect of your application, you should consider the following aspects to ensure that the pump you choose is suited for the job. Size and power The most common reason why pumps fail is due to improper sizing. E.g., there might be a lot of horsepower and barely enough flow. This can create a rattle that can lead to your pump coming apart. Choosing the wrong size could lead to seal, shaft and impeller failures. Hose It is also important to consider the hose when choosing a pump. A discharge hose can lower the friction losses but it depends on the distance. The general rule of thumb is that you should use the same line size as the suction and discharge of the pump for anything under 1000 feet. If you are dealing with anything over 1000 feet then you should use the next largest pipe or hose as the stormwater pump suction and discharge.