The pH-TEK adjusts the pH level in the pool automatically resulting in a safer pool environment. Maintaining a proper pH level allows the chlorine to effectively kill bacteria. This protects the pool surface and equipment resulting in less repairs and extended service life. pH-TEK is a must have for pools using salt systems. Every salt pool has the underlying issue of high pH and the best way to handle it properly is to automatically dose the acid using a proportional feed system. The pH-Tek is a turnkey solutions sense and dispense solution for controlling your ph.