Water Feature Pump Size Calculator

Water feature pumps are typically high flow and low pressure.

Water feature pump size calculator. Enter the number of pipe fittings elbows tees. The water horsepower or minimum power required to run the pump equals where tdh is the total dynamic head in feet q is the flow rate in gpm and sg is the specific gravity 1 for water. Read on to find out. This is the size of the actual outlet on the pump.

Check to make sure that the pump will fit wherever you re going to be putting it. Choose a pump that is at least one and one half times the head height for optimal performance. But how do you figure out what size your water feature needs. Fountain waterfall pump selector calculator use this tool will recommend the correct easy pro pond or fountain pump for your application.

For example if your fountain is 30 inches tall find a pump with a maximum lift of 45 inches or more. Waterfall flow rates for waterfalls and streams your pump should pump at least 100 gallons per hour for every inch wide the waterfall is. To determine the size pond pump first you need to calculate the volume of water in the pond. Smaller pumps typically measure flow in gallons per hour gph and larger pumps typically use gallons per minute gpm.

It is recommended that pond water is circulated at least once per hour. Having the correct pump is vital to a well working fountain or pond. Larger capacity pumps are rated by horsepower hp. Head loss filters heater chiller skimmer uv etc.

Click the update button to calculate total losses for the system. The size of your pump directly affects the appearance of water features like fountains and waterfalls. To find the pump look at the chart under the column titled pump enter the model number of the pump in the search box located on our page s main menu to the left. To calculate the volume of water in gallons simply multiply the length x width x average depth x 7 5.

For simplicity we ll stick to setups where the water feature is the only thing connected to the pump. Maximum water flow for a pipe size. Select a pump based on flowrate and total head loss requirements. A simple calculation to know what the water volume of the fountain or pond is to calculate the length multiplied by the width and times the depth times 7 43 gallons per cubic foot or l x w x d x 7 43 gallons cubic foot.

Larger volumes need larger pumps. Enter all the values you found into this formula to find the water horsepower for your project. For more noise and white water from your falls increase the flow rate to 200 gallons per hour per inch of waterfall width.