The power to produce an effect. Chlorine's efficacy is affected by many factors, including the sun, water balance, and the water's chlorine demand.
The water that flows out of the pump on its way through the filter, heating, treating equipment, and then returning to the pool. Also known as the pressure side.
A 90 or 45 degree plumbing fitting. Used where your pipes take a turn.
A method of separating chemically bonded elements and compounds by passing an electric current through them.
Used in swimming pool formulations designed to break down and digest oils in a pool or spa similar to the way enzymes are used in oil spill clean-up efforts.