How to Remove White Scale From a Pool Liner


Scale most commonly appears at the waterline and around the mouth of the pool filter. It appears in a variety of unpleasant colors, depending on the mineral content, from chalky white to yellow, brown and even black. Scale is made up of minerals and other debris, so light acids like those found in vinegar break it down in a matter of minutes. Vinegar is safe to use on vinyl, acrylic and other plastic pool liners.

Things You'll Need

  • Spray bottle
  • White vinegar
  • Apple cider vinegar
  • Scrub brush
  • Pumice stone
  • Garden hose
  • Drain the pool as you normally would so that the scale is above the water line. If the scale is scattered throughout the pool, drain the pool completely.

  • Fill a spray bottle with apple cider vinegar or white vinegar. Spray the scale heavily with the vinegar and let the acid break down the minerals for about five minutes.

  • Spray some vinegar onto a scrub brush and scrub the scale until it comes off the pool wall. Spray with more vinegar and keep scrubbing until all of the scale is gone. If the scrub brush is not effective, use a pumice stone.

  • Spray the walls of the pool with a garden hose to rinse away the vinegar. Use the hose to push the vinegar and bits of scale toward the drain until the pool is completely clean.

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