Calculating optimal pump size for my system?

[Phillbo]

I live in Arizona.. my hayward runs when the pump is on. currently it's an after thought and is plugged in to the skimmer. THe pool has pop up heads on the bottom that do not work worth a darn. During the replaster I am having a decicated suction line run so it will draw through the skimmer while the hayward runs as well.

I'm not sure what to do with the pop ups in the bottom. Too expensive to run a bunch of return lines so most likely they will stay.

[mas985]

Didn't know about the floor cleaners. That changes the situation somewhat if you want to use them. You will need pretty high flow which will lead you toward a higher HP pump. You need to find out what flow is required for each cleaner and make sure the pump can supply the total. I would lean more towards a 2-speed pump so that you can have the high speed for cleaning and low speed for general circulation.