Learn how to calculate your GPM flow rate at different RPM settings on a variable speed pool pump like the Pentair SuperFlo to find the optimal run time to keep your pool clean while saving money by using less watts.
I'll show you how to calculate flow rate in GPM by figuring out the total dynamic head or TDH using a pressure and vacuum gauge on the pool filter and pump then see where it lines up along the pool pump performance curve provided by Pentair for the SuperFlo.
The pump tells you how many watts it uses at different RPM speeds so you'll find that running longer at a lower RPM will save you money while keeping the water circulating longer in your pool keeping it cleaner and more sanitary.
Once you know the gallons per minute the pump is sending through the filter you can determine how long you need to run your pool for so that you filter at least once per day the entire volume of water in your pool.
In my case I had to take into account optimal flow rates for my poolvergnuegen suction-side pool cleaner as well as my solar heat collectors so I used the SuperFlo's 3 different speed programs to vary the RPM throughout the day to balance RPMs with watt usage.
Below are affiliate links to products shown in the video (they support my channel):
Measureman Vacuum Gauge - [ Ссылка ]
Pentair SuperFlo VS - [ Ссылка ]
Pentair Pressure Gauge - [ Ссылка ]
Chapters:
0:00 Introduction
0:50 Installing Vacuum Gauge
1:16 Measuring Pressure at RPM
2:47 Calculating Total Dynamic Head (TDH)
3:50 Finding GPM Flow Rate
4:50 Calculating Optimal Run Time
5:20 Solar Heater
6:30 Optimize for Energy Efficiency
