NZS 5826 addresses the essential aspects of the operation and maintenance of pools with a focus on pool water quality criteria including methods of water treatment to ensure the risk to public health is minimised. NZS 5826 does not cover the maintenance of heating, mechanical, or electrical equipment used by pools. The design of swimming pools is covered by NZS 4441. This Standard covers all treated freshwater and seawater swimming pools, spa pools, and geothermal public and private pools, during use.