So far so good! My wife and I have been rehabbing an old patio pool that came with house. We have been updating a bit each year. 4 th summer This year we put in a 115 volt vs pump. I wanted a timer and it just made sense to put in a vs. next year I will probably put a flow guage in. My swg will not run at less than 20 gpm. I get this flow at about 1750 rpm. Is there a way to figure out what rpm would be for 40 gpm? I would not think that it is linear...... But maybe. If that was the case 40 gpm would be 3500 rpm. Thoughts? Pictures soon.