I am planning to add solar mats this spring, and want to automate as much as possible. My current setup is 3/4 hp pump, sand filter, one skimmer, one return, and main drain. I am planning 5- 4x12 mats on a one story roof with a solar controller and a new pump. The pump is old. Last year I needed to replace the shaft seal, it was leaking and wouldn't prime. When I replaced it the shaft was rusty, I cleaned it up, but I did notice at the end of the season it was leaking again. Also I would like to upgrade to a 2 speed.
I have been researching all of the components.
I was going to get the Pentair Solartouch.
Does it need an external timer?
Can it switch speeds on a two speed pump?
I am also looking for recommendations on a two speed pump. I would love to get a variable speed, but the budget is tight, and I think it would take the life of the pump to offset the energy savings.
Thanks for the help