Well, my current single speed pump housing is cracked and leaking. The house it's twenty years old, and I believe the pump/motor is as well. We've only had the house one year. We installed a new Hayward SwimClear cartridge filter last year, and kept the leaking pump going for now.
Now it's time to look at replacing the pump assembly later this year. I would like to upgrade to a variable speed if it'll save money on electricity, since I'm replacing it anyways. I was looking at the Pentair IntelliFlow 3 hp variable speed, 011018, from pool supply world online. It says it'll work with an in floor choosing system. We have a caretaker system.
From reading up on it, I see that I'll have to program it to run at a high speed for 90-120 minutes to get the pressure for the system to clean. Then, it can throttle back to a low RPM for circulating.
We also have solar heat, mounted on the roof of the second story. Will the pump work at a lower speed, and still pump water through the solar? If I will have to run at a high speed, there's no sense in spending the money on the VS pump.