Surprise! I've got another question on the timer. I researched the link you guys gave me for the intermatics timers -- thanks Kurt!

And before I call my service guy to tell him what I want (aren't I accomodating to all you safety people!? I'm not going to do it myself!), I need to know this...

We usually need to heat our water. Assuming I need my heater is ON during the time the pump and filter are ON, do I have to have the heater on a timer as well? On the intermatics site they show a timer to turn a gas fired heater off, as well. And it got me to thinking -- it's isn't really a good thing to leave the heater on if the pump isn't on, right?

I also noticed on the link you posted that the timers say "portable timer designed specifically to control the filter pump of a portable pool". What do they mean "portable pool"? They all say that. Am I to assume that they would be undersized for a "non-portable pool".

Again, thanks. I just need to understand this before I call to get this going.