Liquid or granular chlorine? Which is the best chlorine?

Liquid or granular chlorine? Which is the best chlorine?

You must have already read about the different types of chlorine used in the treatment of swimming pools.

The truth is if we decide to list all of the different chlorine compounds that can be used to disinfect the water of the swimming pools we would stay writing here all month!

Amongst these different compounds, there are some that are much more used and that can cause a confusion in the user’s mind that isn’t familiarized with swimming pool cleaning.

Amongst these that confuse the majorities’ heads, I can tell two that are always on the list: liquid chlorine and granular chlorine.

Liquid chlorine and granular chlorine

Today we are going to speak about this two. Which are the differences, advantages, and disadvantages of each one.

If you still have any doubts about which is the best chlorine for your swimming pool, go on with us!

The liquid chlorine

Swimming pool liquid chlorine

The chlorine in the liquid version is in fact a compound called sodium hypochlorite . It is basically what we find in sanitary water.

It possesses some disadvantages but also some good and positive point when compared to the granular chlorine.

Disadvantages of the liquid chlorine

Amongst the negative points of the liquid chlorine we can tell about the difficulty in handling.

It is way more complicated working with a liquid than having to work with a granular substance, especially when the liquid comes in 50 liters recipients.

The instability is also a factor than damages the action of the liquid chlorine. As it isn’t stabled, it lasts very little time under the sun.

To know more about the use of stable and unstable chlorines, check our text:

Has less amount of active chlorine. Opposite the granular chlorine, that generally has got more that 60% active chlorine, the liquid version can possess less than 15%!

That reduced considerably the cost-benefit of the liquid chlorine.

Swimming pool liquid chlorineVantages of the liquid chlorine

In spite of all the negative points of the liquid chlorine, it must have some good things to still being used by so many people, right?

After thinking for some time, we just identified a positive point for the liquid chlorine: the low cost.

It`s way cheaper than granulated chlorine and this may be the reason why they still are faithful buyers.

Another point that some say is a positive point of the liquid chlorine is its easy dissolution. Despite not seeing this as a significantly positive point, I think it`s worth saying…

The granular chlorine

The granular chlorine

Now let’s talk about the granular version of the chlorine which is, by far, the most used by residential swimming pool owners.

Disadvantages of the granular chlorine

On the contrary of the positive point of the liquid chlorine, the granular has as disadvantage its relatively elevated cost.

Sincerely, this doesn’t seem to be a great problem, in the end, when you have a swimming pool, spending R$80 or R$100 with 10 Kg of chlorine doesn’t seem like a big deal.

Another negative point of the granular chlorine is the need to dissolve the product before throwing it in the water, especially in glass fiber and vinyl swimming pools. If you don’t dissolve the product before throwing it in the swimming pool you are taking serious risk to stain the swimming pool coating.

Speaking about it, we wrote a text speaking about stains on the swimming pool but unfortunately this light stains don’t go out!

If your pool is vinyl, the only way of ending the stain is doing a new painting in the swimming pool!

Advantages of the granular chlorine

The granular chlorine presents some benefits that makes it the most used in the Brazilian houses.

We can talk about the easy handling as it`s a granular product and won’t stay dripping like the liquid chlorine.

Stabilized chlorineIt is worth writing about the superior efficiency of the granulated chlorine. In general it has more than 65% active chlorine and this makes all the difference when eliminating the swimming pool seaweed and bacteria.

There is also the easiness of the transportation! Have you imagined the problem that would be to leave a liquid chlorine drip inside your car? With the granular chlorine you haven’t got this kind of problem!

The granular chlorine can de stabilized to stay more resistant to solar light. The stabilizing agent works as a solar blocker and makes it more efficient and more durable in the water.

Stays clear that the granular chlorine is the best option for most of the cases.

I always recommend, besides using granular chlorine, the use of tablets to help in the maintenance of the chlorine level in the water.

Specialized companies in the swimming pool cleaning generally use the granular chlorine for these and other reasons we haven’t told…

An example of company that uses the granular chlorine with absolute success is Água Carioca. They work with swimming pool cleaning in Rio de Janeiro and trust the supervision of the pH, of the alkalinity and the chlorine to leave the clients always satisfied with crystalline water.

In their web site there is also a cost calculator where you can have an estimation of how much the cleaning of your swimming pool will cost. To know more, check the link:

I hope that you liked the enlightening about the liquid chlorine and granular chlorine.

If there are any doubts, get in contact with us through the comments field right below! The community is always ready to help you!

And you? Do you know someone that uses liquid chlorine? Have you ever dealt with a problem with liquid chlorine? Tell us about your experience with the liquid and granular!

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