- Precipitate Precipitates are materials free-floating in swimming pool water, often the result of sudden changes in water chemistry, and can result in cloudy pool water.
- Pool Water Ionizer A pool water ionizer relies on emitting silver and copper ions into a portion of swimming pool water, creating sodium hypochlorite, which introduces small amounts of chlorine into the pool water for sanitation.
- Pool Stains Pool stains can occur on swimming pool walls, floors, and steps, often due to excessive metals present in the water, or algae growth.
- Pool Heater Pool heaters are often used to keep swimming pool water warm and inviting in areas where pool water cannot be kept warm naturally.
- Pool Skimmer A pool skimmer pulls in floating contaminates and objects from the swimming pool and into the skimmer basket, and helps keep the pool free of debris.
- Pool Pump Filter A pool pump filter is usually attached to or located directly next to the pool pump, trapping large objects before they enter the pool pump.
- Pool Pump A swimming pool pump is responsible for circulating pool water through the pool, plus direct water through the various cleaning, heating, and sanitizing equipment.
- Pool Cover Pool covers for swimming pools serve a variety of purposes, like safety, prevent debris, reduce heat loss, water evaporation, and damage from the environment.
- Pool Coping Swimming pool coping describes the structural support found where the pool walls meet the pool decking which surrounds the pool.
- Particulate Particulate is a general term to describe any foreign material in swimming pool water, usually free-floating and contributing to a cloudy pool.
- Potassium Peroxymonosulfate Potassium Peroxymonosulfate, more commonly called non-chlorine shock, is a substance that can rapidly oxidize swimming pool contaminates without the use of chlorine.
- Pitting Pitting is the process of corrosion on the surface and into the underlying material, often metal, causing irreversible and expensive damage to pool equipment.
- pH Reducer PH reducer is a swimming pool industry term describing any product that lowers the pH level when added to swimming pool water, typically a solution of muriatic acid or dry acid (sodium bisulfate).
- pH Increaser PH increaser is a swimming pool industry term which describes any substance designed to raise the pH of swimming pool water, typically made from soda ash or baking soda.
- pH Bounce PH bounce describes the cycling of swimming pool water between and acidic or basic pH levels, potentially creating short but damaging conditions in the pool water.
- Plating Plating is a chemical process where a metal particles are deposited onto the surface of an electrically charged substance, and can occur in swimming pool water that has exceedingly high concentrations of metal.
- Parts Per Million Parts-per-million (ppm) is used to describe quantities of a substance per one million parts of another substance.
- PVC Pipes PVC is a type of poly plastic tubing often used as the preferred way to plumb the main water lines of swimming pools with its key advantages of being water tight when installed correctly and non-corrosive.
- Phenol Red Phenol red, often referred to as PSP, is a liquid reagent used during the testing of pH in swimming pools.
- pH The term pH represents the degree of acidity or alkalinity of water, and part of keeping a swimming pool balanced.