Chemical Treatment for your Swimming Pool

Published on 09 May 2014

Category : Maintenance

Everything you need for swimming pool maintenance and treatment.

A pool's filter system does the work to keeping the water clean, but it takes chemistry to do the fine-tuning. It's important to carefully manipulate the chemical balance in pools for several reasons. One reason is that pathogens, such as bacteria, thrive in water. A pool filled with untreated water would be a perfect place for disease-carrying microorganisms to move from one person to another. Also, water with the wrong chemical balance can damage the various parts of the pool. In addition, improperly balanced water can irritate the skin and eyes. Improperly balanced water can also get very cloudy. There are several different chemicals that are recommended and required for pool maintenance. 

Chlorine and bromine

Chlorine and bromine are very similar. Bromine uses natural compounds extracted from sea water. Chlorine remains the most widely used product by swimming pool owners.


Chlorine is a very widely used chemical – in fact it’s the most common chemical used for swimming pool sanitizing. The reason for this is that it's very effective at killing contaminants and yet is easy and inexpensive to use. Swimming pool chlorine reacts with the pool water to produce hydrochloric acid and hypochlorous acid. Hypochlorous acid is chlorine's active form and is able to penetrate the cell walls of bacteria and other potentially harmful microorganisms, killing them so they no longer pose a risk to the health of swimmers. While pool chlorine is used for regular, ongoing sanitizing, it can also be used for pool shock treatments. "Shocking" or super-chlorinating a swimming pool refers to raising the chlorine levels until they are ten times the level of the chloramines in the water. Chlorine shock treatments are used during pool openings and whenever extra sanitization is required during the course of the swim season. Pool owners should shock their pool a minimum of every two weeks, especially when their pool is frequently used by a high number of swimmers.


Although swimming pool chlorine is the most widely used pool sanitizer, pool bromine is also used. Swimming pool bromine is a highly effective sanitizer, which keeps water clean by killing microorganisms and by combining with and controlling debris in a similar fashion to chlorine.

Pool Shock

The chlorine tablets or granular chlorine that you constantly dissolve into your pool water seeks out and combines with bacteria and other organics on a molecular level, to neutralize these harmful contaminants. In the process of killing these harmful contaminants the chlorine becomes inactive, and the chlorine and bacteria that have combined together is called “Combined Chlorine”. The combined chlorine must be removed from the swimming pool to keep your pool water safe and clean. The combined chlorine is removed by “Shocking” the swimming pool. Super chlorinating or “Shocking” means drastically raising the chlorine level of the swimming pool for a short time, to a high enough level that the combined chlorine is burned up.


Algae blooms cause problems for many swimming pool owners. While lack of proper circulation and out-of-balance water chemistry can lead to the growth of algae in pools, even carefully maintained swimming pools can sometimes experience algae growth. This is because algae spores can be carried into the water by the wind and by swimmers. Once algae blooms take root in your pool, they can become unsightly and can clog your pool's filter. As a result, it's important to use an effective treatment as soon as an algae bloom appears in your pool and it's also a good idea to take measures to prevent algae from growing in your pool in the first place.Algaecides reduce the need for pool shock treatments and are safe for a variety of pool surfaces. Swimming pool algaecides can take your pool from cloudy to crystal clear in less than 24 hours.


Cloudy pool water is unsightly and unpleasant to swim in. It is also potentially dangerous as cloudy water can be home to bacteria and viruses that can cause illnesses and infections. Cloudy swimming pools can also be unsafe as the decreased visibility makes it harder to see if swimmers are struggling or in trouble under the water. Consequently, it's extremely important to keep your pool water clean and clear by using pool clarifiers and pool cleaning chemicals.Swimming pool clarifiers allow you to take your pool water from cloudy to crystal clear quickly and easily. Clarifiers work by causing fine debris particles to coagulate into larger particles which can then be removed from the pool water through the pool's filtration system.

What is Clarifier?

The idea of not having to add chlorine to the pool for a couple of weeks is very appealing to many people. Pool chlorinators or chemical feeders are fairly simple devices that hold larger amounts of chlorine or bromine and gradually release these chemicals into the pool. Swimming pool chemical feeders were invented so that pool owners would have a reliable, convenient method for administering the correct amount of chlorine to their pools with less effort. Pool chlorinators also ensure that your pool water is chemically balanced.

  • Floating pool chlorinators are among the most popular and affordable pool chemical feeders. You might have noticed these automatic pool chlorinators bobbing up and down in your friend's pool or hot tub. They are convenient and adaptable and floating pool chemical feeders can be used in any type of pool - in ground, aboveground, hot tub or hot tub. Floating pool chlorinators work by letting water flow across the chlorine tablets as it floats in the pool water. This provides a constant uninterrupted stream of chlorine in the pool as the tablets dissolve over time.
  • Off-line pool chemical feeders can usually be used with either chlorine or bromine and work alongside your pool's pump and filtration system. These pool chemical feeders are easy to install and require little maintenance and are especially well suited for aboveground swimming pools.
  • In-line pool chlorinators are pool sanitization systems that are installed in your pool’s plumbing system. This type of pool chlorinator system is more common in in-ground pools and is a bit more difficult to install. These pool chlorination systems have a feeder line that provides chlorine to the pool through a feeder line that reaches into the pool water. In-line pool chlorinators are designed based on the size of the pool and water capacity.

Salt Chlorinators

Salt chlorinators are growing in popularity as more people want to make the transition to eco-friendly and are looking for more ways to save money. Salt chlorinators are not an alternative to chlorine. Instead, basic table salt is converted into chlorine when water passes through a generator cell that turns the salt into hypochlorous acid, the same component that is produced when chlorine is added to pool water. As the water returns to the pool, it introduces the newly produced chlorine to the water, creating a safe, healthy, and beautiful pool to swim in

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