On Saturday, March 12, 2016 at 1:42:01 PM UTC-5, wrote:

Yup, it is like the pool pump rules here. They want 2 speed, or
multiple speed pumps when the reality is as soon as you get the
required water turnover, you can just turn the pump off.
Mine is on a 6 hour a day timer and it stays blue.


The difference is that you can run it twice as long at half the
pump spped, move the same amount of water, and it saves a substantial
amount of electricity used. The pump power goes up as the cube of the speed.