So earlier this week, my pump went out. I wanted to get a two speed pump to try and see some energy savings and the benefits of a quieter pump is nice too. I ended up ordering a Hayward Max Flo II 1 HP, Model SP2707X102, which is actually a 1.25 HP accounting for the service factor. On high speed, this has a little more power than the previous unit which was 1.1. On low speed it will consume much less energy than the previous unit, or at least that's my hope. It wasn't the most energy efficient unit available, but should get me in the ball park of where I want to be I think. I ended up buying this unit based on the dual speed feature, price, and availability. I picked it up for $418 with FedEx Overnight Shipping and installed it today. So on to the questions. On low speed, I'm running about 5 psi on my gauge. On high speed I'm around 10-12 psi. Is this what I should expect? I know that resistance drops as well with reduced flow rate, so I'm just trying to make sure that everything is working as it should. How can I be sure that I am getting the proper amount of flow that I need? I don't have a switch installed right now so I can only be wired in at one speed or the other. I'm thinking of playing with my timers a little if I can figure out what my actual estimate GPH filtration is and can set my pump to run however I need to. Right now I would be content to run the pump 24 hours a day on low speed if that gives me enough filtration and use the swtich to go to high when cleaning, backwashing, etc. Also, I know that some old school people have said that running my pump in low speed will burn it up do to too much strain against the motor. Is there anything I need to be on the lookout for? How do I know that the pump is actually up to the task?