Cool your house and heat your pool..
In the Northeast there are many days in the early and late summer (May - mid June, Mid-August - September) where the pool's too cold to swim in but the home AC is running all day long. Typically the outside temp in the high 70s to mid 80s during the day and high 60s to low 70s at night. If there's any humidity the home AC runs.
One should be able to dump the heat from the house into the pool with a simple refrigerant to water heat exchanger and and essentially lower home cooling costs and get free pool heating at the same time.
I've found very little in the way of a pre-packaged unit to do this but here's a guy in the DC area selling services/equipment.
Not sure if this will work in AZ. I know that since it's dry that it can be very comfortable without AC even at higher temps.
26,000 Vynil Liner L Inground
Hayward 1HP Superpump + Hayward Pro Grid 4800 DE Filter
Poolvergnuegen thepoolcleaner Pressure Side Cleaner
Loop-Loc Mesh cover