Submersible Well Pump Sizing Calculator

All you do is enter your specifications and click the update button to calulate total losses for the system.

Submersible well pump sizing calculator. In a two pump system the well pump supplies water to an atmospheric storage tank. There are times however when the well capacity is so low that a two pump system is needed. Smith recommends sizing a submersible well pump based on fixture count which involves counting the fixtures and faucets in a home. The key to sizing a submersible well pump is to calculate the gallons per minute of water required during peak periods.

However no mechanical device is 100 efficient at transferring power. The number of fixtures gives you the gallons per minute gpm required by the pump. Water flowing through piping will lose head depending on the size type and length of piping number of fittings and flow rate. Well professionals have the right kind of equipment to pull a submersible pump without damaging the drop pipe power cable and pump itself.

A second pump a shallow well unit takes water from the atmospheric tank and discharges it into the pressure tank or directly into the system. Once you have chosen a pump check the manufacturer s info for the pump s efficiency and write it as a decimal. Go ahead and hire someone with a well service rig. This calculator allows you to figure out the head loss for pump selection.

Go back in time and design a better well screen and filter pack. Don t try it yourself. Now you know how much horsepower you need to supply to run your pump. The vertical distance in feet from the pitless adapter or well seal to the water drawdown level in the well that yields the flow rate required by the pump.