Cloudy Pool Water: Causes and Solutions

Filter Issues

• Old or Ineffective Filters:

  • An old filter (e.g., 20 years old) may not filter properly, causing cloudiness.
  • Replacing an old filter can resolve cloudiness issues.
  • A new and good-sized filter installation ensures better water clarity.

• Filter Leaks:

  • A filter with leaks can contribute to cloudiness.
  • If the filter shoots materials back into the pool, check for leaks or rips in grids.
  • Broken grids (e.g., 5 bad ones) can cause DE (diatomaceous earth) to not filter properly.

• Filter Maintenance:

  • Clean the filter twice a year or more frequently if necessary.
  • Ensure the filter is charged with the correct amount of DE for effective filtration.
  • Proper DE coverage prevents dirt build-up on grids.

Chemical Levels

• Chlorine Levels:

  • A good chlorine level is crucial; ensure your pool doesn't lack chlorine.
  • Combine chlorine forms with nitrogen, causing ineffective bacteria killing and cloudiness.
  • Shock the pool to raise free chlorine levels and add oxidizers to eliminate chloramines.

• Chemical Maintenance Tips:

  • Check chemical levels weekly to maintain clarity.
  • Super chlorinate when necessary, especially after pool parties.

Circulation

• Water Circulation:
  • Cycle your pool water at least once or twice daily.
  • A pool should run long enough to cycle all water through, e.g., 8 hours/day in summer.
  • Proper circulation helps prevent cloudiness and maintains clarity.

Specific Actions

• Cleaning and Shock Treatment:

  • Vacuum excess algae.
  • Clean any green residues from filters and shock the pool with chlorine and shock Trine.
  • Use Cal Hypo Super Shock for effective chlorination and quick resolution.

• Pool Run Time:

  • Run the pool for extended periods (e.g., 24 hours) if necessary to ensure thorough circulation.

Additional Tips

• Testing Kits:

  • Use a reliable test kit to check for pH, chlorine, and combined chlorine.
  • Opt for tests that easily measure combined chlorine, such as those with aqua strips.

• Preventive Measures:

  • Regular maintenance of filters and monitoring of chemical levels are key.
  • Frequent cleaning and monitoring prevent long-term issues and maintain a sparkling pool.