Private wells calculators

Shock-chlorinate a well safely, size a pressure tank and estimate the pump you need.

• Well Shock Chlorination Calculator (Bleach Amount)Estimate how much unscented household bleach you need to shock chlorinate a private well, from casing size, water depth and target chlorine level.
• Well Pressure Tank Size CalculatorFind the minimum total pressure tank volume for your well pump from pump flow, minimum run time and pressure switch settings, using Boyle's law.
• Well Pump Size Calculator (GPM and Total Dynamic Head)Estimate the flow rate (GPM) and total dynamic head your submersible well pump needs, using a state worksheet method, plus approximate horsepower.