There are many ways to save water such as safety covers, chemicals, maintenance, and proper installation. Safety covers can reduce evaporation from 90% - 95%. There are two different types of safety covers: mesh and solid. A mesh cover will let rainwater run through to help replenish the lost water. A solid cover will let the rainwater runoff onto the deck and into the grass with the use of an automatic cover pump. Anyone of these safety covers will reduce wind which will reduce evaporation. An automatic safety cover can be removed with the turn of a key. The use of a solar blanket will also prevent evaporation.
If you want to get the most out of your pool and save on expenditures then you must maintain your pool by cleaning and any other needed maintenance. Another item that reduces evaporation is chlorine. There are different types of chlorine to use in a pool, such as granular chlorine. When putting granular chlorine in the pool one must solute it with water reducing bleaching of the liner. Some granular chlorine and most chlorine tablets possesses Cyanuric acid which prevent the reduction of chlorine loss due to the sun.