How To Troubleshoot and Fix Common Swimming Pool Problems

Use this information for troubleshooting your pool and keep it perfect all swimming season.  I've narrowed the pool problems list down to a manageable list and touched on the most common swimming pool problems you'll face as a pool owner.  There are literally hundreds of problems, but this list will absolutely point you in the right directions.  And as an added bonus, I've included several detailed videos to help. 

And for a complete list, I have a wonderful eBook "Solutions To Common Pool Water Problems" that has even more detailed information. 

Answers To Common Pool Problems

You will find the solutions on this page to the most common pool problems.  For much more information, or if you'd like to either clear up your pool yourself or talk with me personally, simply go my resources page found HERE to begin. 

Green and Cloudy Pool Water

The Cause Is:

  • Lack of chlorine
  • Inconsistent chlorine
  • High pH
  • High or low CYA
  • Bad filtration system

The Solution Is:

Go HERE to learn more about clearing up your green pool water, and HERE to learn about cloudy pool water. 

Loss of Chlorine 

The Cause Is:

  • Too low level of pool chlorine 
  • Not adding enough for your size pool
  • Too high or low cyanuric acid (CYA/pool stabilizer)
  • Heavy rains or large bather load
  • Bad/old/wrong drops 

The Solution Is:

Black Algae

The Cause Is:

  • Lack of chlorine
  • Inconsistent chlorine
  • High pH
  • High or low CYA
  • Bad filtration system

The Solution Is:

  • Add chlorine, maintain shock level, and brush with wire brush
  • Balance chemicals
  • Lower pH
  • Adjust CYA
  • Repair filtration system

Go HERE to learn more about clearing up your black algae.  

Emerald Green Water

The Cause Is: 

The Solution Is:

pH Is Too High 

The Cause Is: 

  • Salt pools 
  • Using too much pH Up or another type of pH increaser
  • Splashing around/heavily used pool 
  • Not using enough muriatic acid for your size pool 

The Solution Is:

  • Salt pool's pH will always rise 
  • Reduce amount of pH increaser 
  • Test twice per week and add enough muriatic or dry acid to lower pH to proper level 

Pool Surface Stained  

The Cause Is: 

  • Leaves, metals, or something else fell into the pool  
  • Over-use of copper algaecide
  • Improper use of ionizer or other metal based sanitizer  

The Solution Is:

  • Quickly remove all debris from the pool  
  • Monitor the pool on a daily basis  
  • Test twice per week and add enough muriatic or dry acid to lower pH to proper level 

Common Swimming Pool Filter Problems

Here is where we'll touch on your filtration system in a bit of detail.

Pool Pump Won’t Prime

The Cause Is:

  • Water level below the skimmer
  • Bad pump pot lid and/or O-ring
  • Pump basket clogged
  • Skimmer basket clogged
  • Clogged pump impeller
  • The filter pump is on low speed (two-speed units)
  • Clogged filter

The Solution Is:

  • Raise water level 1/3 - 1/2 up from bottom of the skimmer
  • Replace pump pot lid and/or O-ring
  • Clean pump basket
  • Clean skimmer basket
  • Clean pump impeller
  • Increase speed on variable speed pump
  • Clean or backwash filter

Swimming Pool Pump Not Priming

How To Prime A Swimming Pool Pump

Pool Filter Has High Pressure

The Cause Is:

  • The pool filter is dirty
  • Restriction in the return line
  • Bad pressure gauge
  • Pool strainer basket or skimmer basket clogged
  • Restriction in suction line - swimming pool leaks
  • Air leak in suction line
  • Clogged pump impeller

The Solution Is:

  • Backwash or clean filter
  • Clear return line
  • Replace pressure gauge
  • Clean pump and skimmer basket
  • Clear suction side line
  • Repair suction side line
  • Clean pump impeller

Dirt Returning Back Into The Pool

The Cause Is:

  • The pool filter is dirty
  • Torn DE grids
  • Torn cartridge filter
  • Broken laterals in sand filter
  • Broken standpipe in sand filter
  • Wrong type of sand

The Solution Is:

Fix Your Pool Problems and Save Money

Every pool owner has pool problems from time to time.  It's inevitable and part of having a swimming pool.  By taking your time, learning a thing or two, and with a little effort, you'll be able to fix your pool problems and save some big time money.  

What Other Visitors Have Said

Click below to see contributions from other visitors to this page...

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