MArk,

Thanks again for the reply. I have no doubt the pool will turnover in 3-4 hrs @ 3450rpm's, but I worry about alga build up. I've tried to get away with just 6hrs pump time in the summer months here in Phoenix and I start getting algae. It seems like 8hrs is bare minimum for my pool in the summer. That's why I was thinking of the VS pump to share duty time if you will. Program it to run close to top speed to drive those head for floor cleaning 3-4hrs, then drop the VS pump back to a lower speed for just filtration. I think I might take a stab at buying the ecostar. Online for $850 now and I get a $200 rebate back from the power company after install. Seems like a deal...might take a few years for the pump to pay for itself, but I'm here for at least another 10yrs.

Listen, I've learned an awful lot from with your guys knowledge here.

Thanks again for all the help.

Jeff