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It depends on your 'danger' level. Any amount of chlorine can be dangerous. It only takes a few drops in a gallon of water to disinfect it (kill every living thing in there) after only a few minutes. Chlorine is classified as a toxin, yet it is put in our drinking water and in pools and used in spas.

For a normal sized spa, I would never pour more than a cup of chlorine into the spa. 10 ppm is considered the max. If your spa is green and you are not going to use it then feel free to pour 2 or more cups in it. You're better off draining it at this point.

To prevent chlorine breakdown, it is recommended that you add stabilizer and its level will depend on how big your spa is. Chlorine is dangerous because it can damage liners and upset water balance. I suggest that you use 2 ppm of chlorine or more then shock your water for it will prevent the bad odor.

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15y ago
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5mo ago

The recommended safe level of chlorine in a spa is between 3-5 parts per million (ppm). Chlorine levels above 5 ppm can be irritating to the skin, eyes, and respiratory system. Excessive chlorine levels can also cause corrosion of equipment and damage to the spa surface.

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Q: How much chlorine in spa is dangerous?
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How is it that pure sodium and pure chlorine are so dangerous?

Pure sodium and pure chlorine are dangerous because they are highly reactive elements. Sodium reacts violently with water to produce flammable hydrogen gas. Chlorine is a toxic gas that can cause severe respiratory irritation and damage to the lungs when inhaled. When combined, sodium and chlorine react explosively to form sodium chloride, or table salt.


Does spa bromine tarnish silver?

Yes, spa bromine can tarnish silver. Bromine is a reactive element that can cause silver to tarnish and corrode over time. It is best to remove silver jewelry before using spa products containing bromine to prevent damage.


Is Bromine or chlorine better for hot tubs?

Chlorine is the most commonly used sanitizer in hot tubs, as it is effective at killing bacteria and algae. Bromine is also a good option for hot tubs, especially for users who are sensitive to chlorine. Ultimately, the choice between bromine and chlorine comes down to personal preference and the specific needs of the hot tub users.


What harm will it do to mix Peracetic acid with chlorine?

Mixing peracetic acid with chlorine can produce harmful byproducts such as chlorine gas, which is toxic and can cause respiratory issues. It is important to avoid mixing these two chemicals as it can lead to serious health risks and potential exposure to dangerous fumes.


What is the result of mixing chlorine and muriatic acid?

Mixing chlorine and muriatic acid can produce toxic chlorine gas, which can cause respiratory issues, eye irritation, and other health problems. It is important to never mix these two chemicals together as it can result in a dangerous situation.

Related questions

What do you do if there is too much chlorine in spa?

If there is too much chlorine in your spa, you can dilute the water by adding more fresh water. Another option is to use a chlorine neutralizer to reduce the chlorine levels quickly. You can also leave the spa cover off for a few hours to allow the excess chlorine to dissipate.


Why is trichlor used in a spa?

Trichlor is a water sanitiserTrichlor is used in spa because it provides chlorine that disinfects the spa/spa. Trichlor has a content of 89-90% available chlorine. Trichlor is the least expensive substance that can be used to sanitize pools/spas.


How much liquid chlorine equals a 3 inch chlorine tablet?

There is no direct conversion between liquid chlorine and chlorine tablets because they come in different forms and concentrations. It's best to follow the manufacturer's instructions on how much liquid chlorine is needed to achieve the same sanitation level as a 3-inch chlorine tablet in your specific pool or spa.


Can you have a salt water hot tub and a chlorine pool without cross contamination?

You cannot "contaminate" a chlorine pool or spa with salt or vice versa. Chlorine starts as salt. Chlorine generators use salt to make chlorine. Therefore your "salt" spa is already a chlorine spa, you are just not putting chlorine tablets in it. It is a very common misconception that a salt system is some how different than a chlorine system. There are no "salt generators" and the salt does nothing other than allow a "chlorine generator" to produce chlorine. We get this question almost every day and it's generally because customers are "sold" not "told" about the product they purchased. If you were expecting anything other than purchasing a device that makes chlorine from salt, you will be disappointed. Pool & Spa


Sodium and pure chlorine are so dangerous?

how is this possible when pure sodium and chlorine are so dangerous


How do you make a 20 ppm chlorine solution for a 250 gallon spa using liquid household bleach?

To make a 20 ppm chlorine solution for a 250 gallon spa using liquid household bleach, you would need to add approximately 1.8 fluid ounces of 8.25% bleach to the spa water. This calculation assumes that the bleach is added to a freshly filled spa with no existing chlorine in the water. Be sure to test and adjust the chlorine levels accordingly before using the spa.


What is the difference between spa chlorine and Pool chlorine?

Pool chlorine is typically stronger and designed to treat larger bodies of water, such as swimming pools. Spa chlorine is milder and formulated for smaller bodies of water, like hot tubs or spas. It is important to use the correct type of chlorine for each specific application to ensure effectiveness and safety.


Is chlorine dangerous to humans?

Chlorine can be dangerous to humans in high concentrations. Inhaling chlorine gas can cause respiratory issues, skin contact with chlorine gas or liquid can cause burns, and ingesting large amounts of chlorine can be toxic. It is important to always handle and use chlorine products according to safety guidelines.


Is chlorine dangerous or radioactive?

Ordinary chlorine is not radioactive. Chlorine gas is highly toxic, however.


Is 500 ppm of chlorine dangerous?

no


Does draining a chlorine spa hurt trees?

No nothing to worry about I have trees at the down hill side of pool and they cop heaps of chlorine water and are thriving.


How do you raise cyanuric acid levels in a spa?

Cyanuric acid is generally called chlorine stabilizer and it is used to prevent the suns UV rays from eating up the chlorine in outdoor pools. Because most spa's are covered when not in use this is generally not a concern for spa or hot tub owners. If you do however have an outdoor uncovered spa and you wish to raise the CYA level you would simply visit your local pool supply store and purchase some chlorine stabilizer, just ask for cyanuric acid and they will know what to get you.