The benefits of a two speed pump have to be seen to be believed. It just makes way too much sense to be ignored.
The two-speed pump addresses the biggest concerns that pool owners have about their pumps, that being cost of operation and quietness of operation.
Energy efficiency is a big issue with consumers and with power companies these days.
Consider the following real-life comparison:
This 12,000 gallon pool has a normal 1.5 HP pool pump. It runs 8 hours per day. It pumps about 80 gallons per minute, which means that it circulates 38,400 gallons each day. The pump draws 9.0 amps at 240 volts. At a cost of 14 cents per kilowatt hour, that translates to a cost of $2.24 per day or $67.20 per month to operate the pool.
This 12,000 gallon pool has a two speed 1.5 HP pool pump. It runs 12 hours per day in low speed. In low speed it pumps about 40 gallons per minute which means that it circulates 28,800 gallons each day. The pump draws 2.25 amps at 240 volts in low speed. At a cost of 14 cents per kilowatt hour, that translates to a cost of $0.49 per day or $14.70 per month to operate the pool.