Try this. Stop by your local Ace and pick up an electric water heater timer. If that costs too much try looking for a used timer at the pool repair/supply shop or any of the sign companies. U can look for any two pole 110 timer -- run the timer off of one leg and then run each leg through one of the poles. If you decide to use a switch, make sure you get a two pole and switch both legs. Remember that if you have to run wires very far to get to your switch/timer and back, be sure and run larger wire to avoid unnecessary strain on your compressor motor.(e.g., upgrade from 12 to 10 if your compressor draws over 10 amps). cheers
