Liner Care and Maintenance

Caring For Your Liner


  1. Maintain proper water chemistry
    • Keep pH in 7.2 to 7.6 range. A low pH of less than 7.0 should be avoided as it can cause the liner to wrinkle.
    • Avoid using hydrochloric (muriatic) acid for pH adjustment. The acid will attack the print pattern on the liner.
    • Maintain total alkalinity at 800 ppm – 100 ppm.
    • Maintain calcium hardness at 200 ppm.
    • Keep a free chlorine residual between 1.0 and 1.5ppm. If free chlorine drifts below 1.0 ppm algae and bacteria can take hold more easily and may cause staining to the liner.
    • Test pool water fro dissolved metals which can stain the liner or combine with calcium hardness to form deposits on the liner. Dissolved metals can be inactivated by using a chelating agent.
    • Never mix chemicals together and add them to the pool at the same time! Certain chemicals that have no effect on their own can cause bleaching of the liner if they are added to the pool at the same time and the concentration is allowed to remain high. Always allow a chemical to disperse throughout the pool by means of water recirculation before adding a second chemical
  2. Clean above water line with only a non-abrasive vinyl cleaner. An approved cleaner will not remove UV protective coating.
  3. Use only vinyl liner approved maintenance cleaning equipment. Carefully check equipment for any sharp edges or broken pieces which could cut the liner. Ensure that your vacuum head bristles are the proper length and have not been worn down too short.
  4. Check to make sure that the test kit is not expired; check water chemistry once a week.
  5. Proper pool water level must be maintained at all times, especially Spring and Fall when water tables are higher than normal. NEVER DRAIN YOUR POOL except when winterizing and then do not let level drop more than 6 inches. When pumping winter cover off, ALWAYS REFILL POOL AT THE SAME TIME.


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