Kem-Tek 1-2-3 fast and easy system for pool care instead! All Kem-Tek products are color-coded so finding what you need is simple and quick. With Kem-Tek fast-acting shock products, you can be back in the pool in as little as 15 minutes. All of Kem-Tek products are salt-system friendly and can be used to keep your saltwater pool clear and clean. Kem-Tek 1-2-3 System: Step 1 - Balance your pool water pH level first, so the other products work with optimum results. Step 2 - Regular chlorination disinfects water and keeps your pool clean and clear. And step 3 - Shock your pool regularly to stop algae growth before it begins, and get back to swimming in as little as 15 minutes.