Thanks.

This was a helpful response as I was starting out with the new Pentair Intelliflo variable speed pump. I leave my pool open year round with a leaf cover on top for the non-swimming months. I have been experimenting with running the new Intelliflo variable pump at lower speeds. It sure runs quiet compared to the old Hayward single speed in its best days. I like the Antifreeze setting which I increased the RPM up to 1300 RPM during the winter months which are typically low 20's in the coldest mornings. But this winter we had a few days that hit in single digits around 5 degrees. I didn't have a problem with freezing when the pool turned on automatically and kept running.

Now that the weather is warming up more, I am still tweaking the variable speed and time to run. I've been running it at around 1350 RPM and kick it up to around 2500 RPM when the Polaris Sweeper pump turns on to clean the pool. I have run the Pool pump at 1350 when the Polaris pump turned on around Noon for a couple of hours and it didn't seem to clean or move through the pool as effectively. Not sure if that is because of colder water with water temp in the 40's, or it needs the extra RPM power.

Regardless, my pool balance for Chlorine and PH have been right on target with litle deviation over winter with the new variable speed pump. Again, now with warmer days, I will see if I need to adjust time and RPM when the water temp gets into the 70s and 80s.