Pool Cleaning Chemicals Guide in 2021

Published On: December 28, 20200 Comments on Pool Cleaning Chemicals Guide in 2021Tags: Last Updated: February 9, 20243.1 min read

One of the most effective ways to keep your pool water clean and safe is through the efficient use of pool chemicals. Test your pool water in two to three weeks for maintaining proper chemical balance as well as for improved sanitization. Further, it ensures greater swimming comfort and longevity of your pool’s surface and key equipment.

Pool Cleaning Chemicals Guide

Here, in this article, we’ll be enlisting the best pool chemicals in 2021:


Chlorine is the fundamental element to keep your pool safe and hygienic for you and your kids to swim for hours. It helps in preventing the growth of algae. Chlorine keeps the water clean by attacking & neutralizing harmful microorganisms and bacteria. Chlorine does the job by doing a simple chemical reaction, how? When chlorine is in the pool water, it gets broken down into two key molecules—hypochlorite ion and hypochlorous acid. Both the molecules break down the cell walls of the microorganism, making them harmless.

Pool Cleaning Chemicals Guide - chlorine

But, it is essential to know that your pool doesn’t need too much chlorine. But how do I know whether there is more than adequate chlorine in the pool water? If the pool water smells all chemicals and causes irritation to the eyes and skin, you must check the levels of chlorine in the pool water; It’s probably on the higher side.


Similar to chlorine, bromine kills bacteria and microorganisms in the pool water. But, the way it reacts is different; first, it is stable at warmer temperatures. The most obvious benefit of choosing bromine over chlorine is that it doesn’t irritate, therefore best for sensitive skin.

Pool Cleaning Chemicals Guide - bromine

But, one thing you need to know is that it is much harder to wash the smell of bromine from your body than chlorine. The bromine is available in the form of tablets; you just need to throw a few in the pool water once in a week or two.


RTO are the secondary chemicals used to kill the growth of algae and bacteria but have to be used less frequently, like once in a month. The oxidizers are available in powdered form, pour in the pool water, and let it settle for a couple of hours. The two most common oxidizers are:-

Calcium Hypochlorite: Best oxidizer to sanitize the pool water, kills algae, and boosts the chlorine level in the pool water. It is recommended if the Ph level is somewhere around 7.2.

Chlorine-Free Shock: It is a fast oxidizing method that burns the algae and bacteria while leaving no residue. You can immediately start swimming after the treatment.

Water Balancers

Make sure your water is in balance, test at least once or twice a month for the Ph and Chlorine level, and adjust as required. The alkalinity can also be checked; if there is Ph trouble, evaluate the calcium level to determine hardness. The granular soda ash is for increasing the Ph level. The Granular Sodium Bicarbonate can raise the alkalinity level in the pool water. If the water is too soft, you can toss a few Granular Calcium Chloride tablets. Granular Sodium Thiosulfate is for lowering the chlorine concentration in the pool water.

Importance of A Pool Cover to Reduce the Maintenance Costs and Time?

A patio enclosure and/or pool cover is an absolute must to prevent debris build up, and keep the pool water clean while cutting down on the chemical consumption.  The benefits outweigh the investment you make on these pool products. You can seek the help of professionals for effective pool care and maintenance.

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