While hiring a pool maintenance company in Ontario is always an option, it is still highly recommended that every pool owner understand the basic principles of their pool’s chemistry. Maintaining correct water chemistry is an essential part of not only keeping your swimming pool clean, it is also a vital means of keeping swimmers safe as well.

Regular swimming pool water maintenance is a great way that any pool owner can save themselves time and money in the long run, as well as also avoid liabilities and stress. Once they understand the basics, it is actually quite easy for any swimming pool owner to maintain their pool’s chemistry just as well as almost any Ontario pool professional.



This is a common term that any swimming pool owner, old or new, will have heard being thrown around in pool related conversations. The pH in your swimming pool can fluctuate when almost anything goes into the water. People and rainwater are probably two of the most common things that cause variations in the pH of your pool water.

It is therefore recommended that you keep an adequate amount of pH increaser and pH decreaser readily available. On average, most pool owners in Ontario use less pH decreaser than pH increaser. If the pH of your pool’s water is low then that means that it is acidic. Likewise, if the pH of your pool’s water is high then that means that it is basic.

Recommended pH Level: 7.4 – 7.6




Remember how we said that almost anything that enters the water can affect the pH of your pool? This is where alkalinity comes into play. Alkaline substances are used to regulate pH fluctuations by absorbing changes to your pool’s water before these changes can alter the pH. This is why it is also important that you try to keep an adequate amount of alkalinity increaser readily available

Recommended Alkalinity Level: 100 – 150 ppm


Chlorine And Bromine


Chlorine is a popular pool servicing chemical that a lot of pool owners will have at least heard of in passing. Chlorine is a useful and cost effective killer of waterborne bacteria and algae. It can be added to your pool’s water in a few ways, the most popular method being simple chlorine tablets. These tablets can be added to your pool’s skimmer basket or a floating chlorine dispenser. Aside from tablets, other methods include powdered chlorine or a salt chlorine generator.

An alternative to chlorine is bromine. Bromine is commonly used in indoor pools and spas because it has a less obtrusive odor compared to chlorine. Bromine is not effective in outdoor pools because sunlight breaks it down quickly.

Recommended Chlorine Level: 3 ppm

Recommended Bromine Level: 3 – 5 ppm


Calcium Hardness

Calcium doesn’t really affect the chemistry of your water in any direct way; however, it is still important. If your pool’s water lacks calcium then it will seek it out elsewhere, most likely eating away at your pool’s plaster.

Recommended Calcium Hardness Level: 200 – 275 ppm


Don’t Be Afraid To Ask For Help From Ontario Pool Experts

These are the basic factors that affect the overall chemistry of your swimming pool. If you want to personally maintain your pool’s chemistry but are confused about something then don’t be afraid to contact your local pool professionals in Ontario.

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