If it's and Intermatic with a yellow dial, it should have come with timer pins. If you don't have them, Home Depot and Lowes carry them for about a buck or so.

Scott

That's the clock. The timer pins only work in changing the setting to from low to high speed not to turn off. The booster turns on as well at the high setting. They wired it to run low the rest of the time. There is no other way to turn it off other than flipping a switch on the panel....... ohh well may have to switch out sooner than later as the Jandy 2hp is power hungry!

quote" The timer pins only work in changing the setting to from low to high speed not to turn off. "quote

Without a digital controller you can't control anything other than off and on at your selected speeds than you currently have. When I wire a pool with a 2 speed pump and no computer I use 2 time clocks, one is a 106 2 speed control to determine the total hours of high/low speed circulation and the other, a 104, determines the time within it's window of high and low speed.
You can purchase a 104 for a song and dictate the window of how long the 106 operates low and high speed. Without a digital controller your stuck with 24/7 operation.
This is a simple and affordable upgrade, you should ask your builder to comp it for you, I can't believe he didn't do it this way to begin with.
Just my .02

See ya,
Kelly