I just became aware of this law which apparently went into effect in Jan. of 2008 requiring any replacement filter pumps over 1 hp in Calif. to be a multi or variable speed pump. We had our pool replastered, the deck redone, new plumbing and a new filter pump installed in September 2010. The company that did the work is fairly large and well known in So. Calif. No mention was made to us of this law and they sold us a single speed 1.5 hp Pentair SuperFlow pump installed for $1070. I was a complete newbie and not even aware of multi or variable speed pumps at the time (they made no mention or them), and didn't know about this site. I'm now in the process of replacing the single speed pump with a Hayward EcoStar variable speed pump. Anyone know if they were remiss in not informing me about the law or giving me the choice of a multi or variable speed pump?
Thanks for your input.