Swimming pool equipment is a broad term used to describe any one of a number of devices (usually mechanical in nature) designed for a specific application in the swimming pool. Common jobs for swimming pool equipment include: circulation, filtration, heating, and cleaning of pool water and surfaces. Pool equipment is designed to facilitate necessary functions or to make pool maintenance easier and less time consuming. For this reason, some pieces of pool equipment are absolutely necessary (pool filters, pool pumps) while others add ease of operation and/or comfort to the swimming pool (pool cleaners, pool heaters). This article will provide a guide to the basic types of pool equipment available for your swimming pool and an overview of the functions performed by each type.