Handling May Apply
Details & Exclusions
6 days/week -
view hours
Home > School Of Pool > Cloudy Pool Guide

Cloudy Pool Water Solutions

Thereís nothing worse than heading out to your pool for some relief from the heat only to find that your oasis isnít exactly looking crystal clear. Cloudy, murky, canít see the bottom? Cloudy pool water can mean a number of things might be wrong. Take a gander at our guide to cloudy pool water and letís see if we can get to the bottom of your murky mess.  

Top 3 Causes Of Cloudy Pool Water

There are quite a few factors that can negatively impact the clarity of your water and result in the cloudiness you are observing.

Mechanical Reasons

If the chemistry is good and the pool is being properly shocked and treated on a regular basis, then it might be that the poolís mechanics are at fault. The mechanical components that can contribute to murky pool water include:
  • Improper pump and/or motor size 
  • Insufficient filtering time
  • Poor circulation
  • Improper filter size 
  • Improper maintenance (vacuuming & brushing)
The Solutions

Your swimming pool's filtering system should be operating a minimum of 8 to 10 hours per day. If the pool water becomes murky, be sure to increase the amount of time until the problem has been solved.

Regular vacuuming will ensure proper circulation and help with water clarity. Consider using an automatic pool cleaner. You'll end up with better circulation, cleaner pool surfaces and less work. Shop for an automatic cleaner.

Make sure that you clean your filter from time to time. Bacteria build-up in your filter or blockage can cause water clarity problems. If you need a new filter, browse our filter selection.

If your pump is improperly fitted for your pool, cloudy water issues may also arise. If the pump is too large, you may be forcing debris you want filtered right through the filter. If you need a new pump check out our selection of pool pumps.

It may also help to thoroughly clean your pump, making sure it is free of debris. Blockages can negatively affect the efficiency of the pump and water circulation.

Environmental Causes

It is important to think about what could be getting into your pool to result in the murkiness. Do you have a low hanging tree? Is your backyard home to furry critters? Is there construction nearby? Environmental factors include and are not limited to:

 ∑     Bird Droppings

∑      Leaves

∑      Branches

∑      Pollen

∑      Dust

∑      Dirt

The Solutions

Despite that the fact all these pesky pollutants cause muddied pool water, they must be dealt with differently. Pollen, dust and other particles can be treated using a water clarifier. Flocculants work well in severe situations by settling the particles to the bottom of them pool. You are then able to get them out using a vacuum. A skimmer sock inside of the skimmer works well in removing fine pollen or dust that may be too fine for your filter. If you need a skimmer sock, we have them available here.

Things such as leaves and bird droppings can create the build up of bacteria and results in a chemical imbalance. In this instance, shocking the pool is necessary to ensure that youíre eliminating the root of problem. Pick up some pool shock if this is your issue.

Chemical Reasons

Many pool owners quickly blame "bad chemicals", but it is important to note that most of the time environmental and mechanical issues should be ruled out before you skip to chemical issues.  Here are some of the factors that can result in cloudy pool water:

  • Water chemistry can contribute to cloudy or hazy water
  • Chemical cleaning of the filter, poorly maintained sanitizer levels, lack of a chemical maintenance routine.
  • Improper pool shocking

The Solutions

If the water chemistry is at fault, the pH levels in your pool will be too high. Other chemical imbalances include that the total alkalinity (TA) is too high or the Calcium Hardness (CH) is too high. With pH & TA being overly high, the water will become dull and the chlorine reacts more slowly. This causes the chemicals to be ineffective against bacteria and algae. This can cause algae and other bacteria build up which will affect the overall clarity of the water.

High CH doesn't become a problem until the water warms up to a temperature over 80 degrees. Calcium minerals dissolve quicker in cold temperatures. When the pool is heated up, the high amounts of CH become visible, as the calcium takes much longer to dissolve.

By paying close attention to your chemicals levels, you can easily avoid this. If you find that one of these imbalances is present in your pool.

Another chemical issue that can cause cloudy pool water is a lack of regular shocking. Pool owners need to shock their pool regularly and to use the correct amount each time they do. By regularly shocking the pool, you are ridding it of human excrements that can cause discolored water. Proper shocking also helps to revitalize the chlorine level and knock out early algae growth

Still canít solve your cloudy pool problem?  Drop by our Facebook Page and let us know your problem. Weíll see what we can do.