Keeping your swimming pools pH at the right level: Why it matters & how to do it

Keeping your swimming pool's pH at the right level: Why it matters & how to do it

The balance of various chemicals in your pool's water is what determines its pH balance. Every substance that interacts with the water in your pool, including rain, dirt, germs, sunscreen, and suntan oils, can alter the pH balance. In order to preserve the inner quartz plaster of the pool, it is crucial to maintain the right pH of swimming areas. If the pH of the pool water is off, all the substances that come into contact with it will immediately begin to corrode and destroy the plaster shell, leaving the surface scratchy and harsh on the sides and bottom.

Understanding pH and How It Is Measured

Your swimming pool's pH balance represents the harmony of its overall acidity and alkalinity. Your swimming pool will experience undesirable chemical reactions if your water is either too alkaline or too acidic. Both the pool and the swimmers are in danger as a result of these reactions. Scaling may develop on the surface of the pool and plumbing fixtures due to too alkaline water. High alkalinity makes water murky and makes chlorine less effective. Alkaline water prevents chlorine from doing its function of destroying germs. You will notice rust and scratching on the outermost layer of metal equipment and material surfaces if the water is too acidic. Additionally, your swimmers will endure eye and skin discomfort.

Pool water's pH level should be between 7.2 and 7.8, with 7.4 and 7.6 being ideal. Water with a pH below 7.2 is too acidic and can irritate your eyes, harm pool liners, and corrode metal objects. Water that is excessively alkaline and over 7.8 can irritate the skin, cloud the water, and promote scale build-up.

Having an improper pH level might cause a variety of issues for your concrete swimming area. You can notice calcium deposits forming on the tiles or filter if it rises too high. If it is too low, the calcium deposits in the plaster shell of the pool will begin to be drawn into the water, eroding the sides and bottom. Additionally, an imbalanced pH might result in murky or hazy water that is unfit for swimming.

Swimming pool test strip Checking pool chemical levels

Why it matters

It's simple to believe that your pool is "close enough" to its proper balance level. There are a few very significant reasons, though, why you should make sure your pool is correctly balanced. Low pH water irritates the skin and eyes. Your body loses its protective natural oils when you drink acidic water. This results in brittle hair and dry, itchy skin. Water that is overly alkaline can also cause these symptoms. The pH of the water must be regulated in order for pain to be avoided.

Chlorine becomes ineffective at high pH levels. As a result, the germs in the water won't be able to be killed by your chlorine. If chlorine isn't added, your pool will quickly become a home for thriving bacteria, algae, and other species. Additionally, an unbalanced pH will call for a lot more chlorine, raising the cost of maintaining your swimming pool's safety. Water that is hazy will also have a high pH. Minerals are present in every water. These minerals leave the solution when the pH levels rise, giving the water a murky appearance and leaving mineral deposits all around the pool.

Additionally, an unbalanced pH level can harm the pool itself. In particular, this is valid for pools with vinyl liners. The liner ages significantly more quickly than it usually would at high pH levels. This necessitates the purchase of a new liner, which might be costly. The pool corrodes due to a low pH level. Low pH can cause corrosion in ladders, pumps, mechanical systems, slides, and diving board supports. In fact, rust can affect even the plaster in your pool.

What steps can be taken to keep a pool's pH in balance?

The health and safety of those who use your pool as well as the pool itself depend on maintaining the pH of the water within this ideal range.

Invest in testing kits

A pool's pH, chlorine, total alkalinity, and calcium hardness are four crucial chemical values that test kits monitor. To ensure that the levels in your pool are within the acceptable range, it is essential to buy a dependable testing kit. With the use of this information, you can determine which chemicals are required to maintain the proper pH level in your swimming pool.

The testing kit may be used quite easily. To ensure an accurate reading, first take a sample of the water from approximately eighteen inches beneath the water's surface of your pool. Add the appropriate amounts of reagent or indicator solution to your water sample according to the instructions provided with the kit. The water sample and reagent should next be well blended by shaking the test tube. Your water sample will change color, which you may compare to the testing chart to determine the water's chemical composition.

Have test trips on hand

Applying a test strip with litmus test technology is another technique to evaluate the quantity of chemicals in your pool. You can take readings using a basic rod and a color chart by dipping it into the pool's water. However, compared to the drip style method used in pool test kits, this method does not provide the most precise information. It is quick and convenient. Once the pool water has been tested, consult the manual that was included with the test kit package. You can calculate the precise chemical dosage to add to your pool using this chart.

Keep pool chemicals accessible

There are a number of substances you need to apply to maintain your pool functioning properly. The powdered nature of these chemicals allows for easy pouring into the swimming pool.

Oxidizing agents

  • Calcium Hypochlorite is a chlorine-boosting chemical that shocks swimming pools to disinfect the water and kill any algae.
  • A quick-acting, oxygen-based sanitizer called Chlorine Free Shock allows swimming to resume immediately after use and burns without leaving any residue.
  • Used in pools without a liner is lithium shock. Additionally, it is quick-acting and permits swimming right after treatment.

The water balancers

  • Alkalinity Booster: Granular sodium bicarbonate is in charge of increasing the water's overall alkalinity.
  • Increaser of Calcium Hardness: increases the level of calcium hardness
  • When chlorine levels are too high, a chlorine neutralizer is employed to help keep levels stable.


  • Algaecides: they are effective in killing existing algae and preventing new growth. Regular maintenance will help keep your pool healthy and algae-free.
  • Enzymes are responsible for dissolving any odours, oils, or other non-living contaminants found in the water.
  • Without phosphate, algae cannot survive in the water, therefore phosphate removers break down any phosphate present there.

A swimming pool expert can assist in balancing your pool, but to keep the water in your pool safe for swimming, you will need to monitor and manage it. To make it simple for you to manage the pH balance of your pool, many of the chlorinators that are currently on the market incorporate automatic pH adjustment and chemical injection systems.

Final thought

Maintenance of swimming pools shouldn't be overlooked. For a number of reasons, it is crucial for the chemistry of your water to maintain a stable pH. To guarantee that the water in your pool is the perfect balance for swimmers and the pool itself, you must pay close attention to it and conduct regular tests.

No matter what kind of maintenance method you use, it's critical to keep in mind that pH balance influences not only how suitable the swimming water is for use, but also how long the pool's shell will remain smooth to the touch.

Happy dipping!