Yes, you'll get the power from the timer. First, find out if it is 120 volt or 240 volt (most pool pumps run 240v and most salt systems are set up default @240.) Second, find and turn off the circuit breaker to the timer and pump, usually a double 20 Amp breaker. Third, hook up salt system power supply wires to the LOAD side of the timer (2 AND 4) or (2 OR 4) if the pump is wired for 120v. Ok, so when the timer is turned on, then and only then shall the salt water system be powered up. If you're not too sure about electrical stuff like this, call an electrician. Most of these salt water systems will have diagrams that are easy to read and understand. I hope this helps you.