I am looking to replace my old single speed pump and am looking to upgrade to a variable speed. I currently run my 3/4 HP pump 8 hours a day and get slightly over 1 turnover, so I am looking at running the variable speed pump at very low speed for a longer time (maybe 24 hours/day). The 3 most popular ones I see are Hayward, Pentair and Jandy. I found the California writeup comparing the efficiencies and it is easy to compare the Hayward and Pentair at 1000 RPM, but the Jandy low speed is different. Does anyone have any comparison of the Jandy efficiency at 1000 RPM to make a direct comparison? Also, any experience with reliability of these 3 brands ? Thanks in advance.