How Much Bleach To Add To A Pool? Keep The Water Clean

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Maintaining the pool requires you to use chlorine or other disinfectants that can help keep the pool water free from microorganisms and other contaminants. Chlorine can form into hypochlorous acid when it comes into contact with water and it can combine itself with different water pollutants.

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It is very important to use chlorine simply because it can help remove urine, bacteria and even contaminants like lotions, perfumes and hair products. By removing these contaminants, you and your family can actually use the pool safely without worrying about getting sick or having skin irritations.

In some cases, instead of using chlorine, most people will opt to use bleach. Bleach is a liquid product that often contains chlorine. Although it is much more convenient to use, you need to understand that you have to use the right amounts to effectively keep the water clean.

How Much Bleach To Add To A Pool? Keep The Water Clean

What You Need To Know When Using Bleach


Bleach is often found in laundry products since it is mainly used to help remove stains from clothes. Bleach and chlorine are actually very similar except for the fact that elemental chlorine is not made up of other chemicals and bleach can actually be made without using chlorine.

Typical bleach can also form hypochlorous acid. Unfortunately, most bleach, also known as liquid chlorine, is made in low concentrations. They are typically made into 6% solutions since they are mainly for laundry use while chlorine products used for the pool are in 10% or 12% concentrations.

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This means that you will have to use more of the product so you can get the right chlorine levels in your pool water. When using bleach, stay away from scented ones so you can avoid adding contaminants and only be adding water, chlorine and a little salt into the pool.

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The biggest benefit of using bleach is that its chlorine content is already properly dissolved. Unlike other chlorine products, it typically does not contain any filler. You can also manually add the bleach, or use a liquidator. With the help of bleach, it is much easier to maintain the chlorine levels in the pool.

How Much Bleach Should You Use?

If you want to know exactly how much bleach you need to use, you need to first test the chlorine levels of the pool. You need to aim for a chlorine level of 1-3 ppm so you can keep the water free from contamination without having to cause swimmer discomfort or skin irritations.

The most common bleach product that you can use for the pool is Clorox and it usually has a 5.7% concentration. If you have a 30,000 gallon pool, you will have to use as much as 126 ounces of Clorox to raise the chlorine levels by 2 parts per million.

If you want to make sure that you will be able to get the correct measurement, you can try to calculate how many gallons of water your pool holds. You can do this by multiplying the length in feet, by the width, and finally by the average depth of the pool. This will help you get the volume of the pool.

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You should then multiply the volume of the pool by 5.9 if you have a round pool, 6.7 for an oval pool as well as 7.5 if you have a rectangular pool. This will allow you to know how many gallons of water your pool holds.

If you are shocking the pool, you will have to use ½ gallon of bleach per 10,000 gallons of water to raise the chlorine levels to 5 ppm. If you are just trying to raise the chlorine level by 2.5 ppm, then you will have to use as much as ¼ gallon of bleach per 10,000 gallons of water.

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Bleach is a very convenient alternative to chlorine simply because you can easily use it and dissolve it in your pool. Although you might have to buy a couple of gallons in order to sanitize your pool, you should know that if you are using bleach, you have the benefit of not adding any unwanted filler to the water.

When using bleach, you can try to add it on the deep end of the pool. But if you want it to easily mix with the water, you can put it in the pool skimmer instead. Check the chlorine levels of your pool twice a week so you will know if you need to use more bleach and how much is needed.

When using bleach, make sure that you are using an unscented product so you will be able to avoid causing irritations and have enough free chlorine that will continue to keep your pool contaminant-free. Always use enough bleach depending on your pool volume and the current chlorine levels.

Last update on 2021-01-17 at 13:12 / Affiliate links / Images from Amazon Product Advertising API

About the Author Emily Taylor

My name is Emily Taylor, gardening is my passion and I’m looking forward to sharing it with everyone. I know that there are millions of people out there want their backyard and garden be attractive just like their front yard, so I am here to help you create your own backyard paradise.

Leave a Comment:

Peggy Adcock says Jul. 2018

I have a above ground pool 4ft by 24ft round pool how much bleach would I put in it and how many gallons of water does my pool hold

Lilia Gartee says Jul. 2018


mathi arasu says Sep. 2018

Highly useful

Nancy J Campbell says Sep. 2019

i have a 18/48 intex pool how much bleach does it take for this size pool

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