Best Chlorine form

[Honey]

What do you think what is the best type of chlorine?
1. Liquid
2. Tablets
3. Granular

[chem geek]

The following are chemical facts that are independent of concentration of product or of pool size and can help answer your question.

For every 10 ppm Free Chlorine (FC) added by Trichlor, it also increases Cyanuric Acid (CYA) by 6 ppm.
For every 10 ppm FC added by Dichlor, it also increases CYA by 9 ppm.
For every 10 ppm FC added by Cal-Hypo, it also increases Calcium Hardness (CH) by at least 7 ppm.

Chlorinating liquid or bleach does not add CYA nor CH into the water. The downside is that you need to add chlorine every day or two unless you have a pool cover in which case you might be able to add it twice a week. The reason that Trichlor tabs/pucks are so popular is that they slowly dissolve so last nearly for a week, but the buildup of CYA reduces the active chlorine level (since more chlorine is bound to CYA) and that allows algae to grow faster than chlorine can kill it.

Dichlor is granular and adds CYA even faster than Trichlor. Cal-Hypo is granular but builds up CH though on a percentage basis it builds up more slowly than CYA. Lithium hypochlorite is granular and has no CYA nor CH buildup but is very expensive.

[Denniswiseman]

I find that Chlorinating liquid or bleach keeps my pool in balance with the minimum of adjustment
I would recommend it

[Honey]

I heard somewhere that liquid chlorine is not safe for pool water. maybe it is flammable

[Larry]

Liquid chlorine is no less safe than any other form of chlorine. Once in the water it becomes hypochlorous acid in its active state. That is true for all chlorine types.
If you feel your liquid chlorine is not safe, read the safety warnings on the label and then share any worries about those warnings here so we can address your issues.

Larry

[paulbest]

LIQUID are generally used in larger commercial pool as they find economic advantage on it. Liquid chlorine does have it’s drawbacks however. It’s not stabilized, like tablets are, so even more Cyanuric Acid will be needed to shield the chlorine from the sun. Secondly, liquid chlorine has a very high pH level, close to 13 – which requires users to keep a lot of acid on hand, to lower the pH level as needed. It’s not very well suited for use on residential pools, due to it’s limited availability in most parts of the country.

TABLETS are for everyday chlorination. this type of chlorine is slow dissolving and slow reacting. These tablets are known as TriChlor, short for Trichloro-S-Triazinetrione. Pressed into tablet or stick form, they are easy and safe to store and handle. Just drop enough tablets into your chlorine floater or automatic chlorinator, to raise the chlorine level in the pool above 1.0ppm.

Chlorine tablets can also be purchased in 1 inch tabs. These are suitable for chlorinating small pools or spas. Another benefit is that 1″ tabs dissolve slightly more rapidly than 3″ tabs, due to their increased surface area. This can be beneficial when the chlorine level needs to be brought up rapidly.

GRANULAR chlorine can be dangerous if allowed to mix with other compounds or chemicals – including soda pop, antifreeze, algaecide, dirt, leaves. Fast and explosive reactions can occur, with a strong and violent fire that is almost impossible to extinguish.

[odbob]

Cheap bleach from my local supermarket, 2 litres added after each swim, works for me

[Denniswiseman]

LIQUID are generally used in larger commercial pool as they find economic advantage on it. Liquid chlorine does have it’s drawbacks however. It’s not stabilized, like tablets are, so even more Cyanuric Acid will be needed to shield the chlorine from the sun. Secondly, liquid chlorine has a very high pH level, close to 13 – which requires users to keep a lot of acid on hand, to lower the pH level as needed. It’s not very well suited for use on residential pools, due to it’s limited availability in most parts of the country.

TABLETS are for everyday chlorination. this type of chlorine is slow dissolving and slow reacting. These tablets are known as TriChlor, short for Trichloro-S-Triazinetrione. Pressed into tablet or stick form, they are easy and safe to store and handle. Just drop enough tablets into your chlorine floater or automatic chlorinator, to raise the chlorine level in the pool above 1.0ppm.

Chlorine tablets can also be purchased in 1 inch tabs. These are suitable for chlorinating small pools or spas. Another benefit is that 1″ tabs dissolve slightly more rapidly than 3″ tabs, due to their increased surface area. This can be beneficial when the chlorine level needs to be brought up rapidly.

Utter rubbish
Using stabilised chlorine adds Cyanuric acid which when it gets to high reduces the effectiveness of the chlorine
The only way to reduce the Cyanuric acid is to partial drain and refill
Check out Chem Geek's post

[spartacus]

I use an above ground pool. I read on the site http://bestlinepool.com.ua/ chlorine tablets can damage the pool surface