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There is 3 measurements of chlorine in a pool or spa. Total chlorine, combined chlorine, and free available chlorine. Free available chlorine is the good chlorine that is active in the pool killings germs and algae. Combined chlorine is chlorine is basically chlorine that was once active but has killed germs or bacteria and is now inactive in the pool. Total chlorine is free available and combined chlorine added together. If your combined chlorine is higher than free available chlorine then the water needs to be shocked to eliminate the combined chlorine. But be careful here. If you don't reach what's called break point you will only add to the combined chlorine. There are products on the market which will only remove combined chlorine without effecting your free available chlorine if you are unsure about reaching breakpoint. Hope this helps.

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Q: Can you swim in pool hat has a normal chlorine level but the free chlorine level is high?
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How do you get high free chlorine to match total chlorine?

Total Chlorine = Free Chlorine + Combined Chlorineor, put another wayTotal Chlorine - Free Chlorine = Combined ChlorineFree Chlorine is the chlorine that is doing its job.Combined Chlorine is the chlorine that has combined with contaminants such as nitrogen. It is ineffective as a sanitizer and it is noxious.Total Chlorine is the total of these two levels.To eliminate the Combined Chlorine (making all the chlorine in the pool Free Chlorine) you must shock the pool to remove the contaminants. You must reach "Breakpoint Chlorination", which is the addition of chlorine to your pool equivalent to the Combined Chlorine level times 10.example:Total Chlorine = 1.5ppmFree Chlorine = 1.0ppmSo, the Combined Chlorine (the difference between the two tests) is .5ppmBreakpoint chlorination, in this example would be .5ppm X 10 = 5ppm. So, in this example, you would add enough chlorine to your pool to raise the chlorine level up by 5 parts per million.


What do you do when your total chlorine is high and your free chlorine is low?

Total Chlorine = Free Chlorine + Combined Chlorineor, put another wayTotal Chlorine - Free Chlorine = Combined ChlorineFree Chlorine is the chlorine that is doing its job.Combined Chlorine is the chlorine that has combined with contaminants such as nitrogen. It is ineffective as a sanitizer and it is noxious.Total Chlorine is the total of these two levels.To eliminate the Combined Chlorine (making all the chlorine in the pool Free Chlorine) you must shock the pool to remove the contaminants. You must reach "Breakpoint Chlorination", which is the addition of chlorine to your pool equivalent to the Combined Chlorine level times 10.example:Total Chlorine = 1.5ppmFree Chlorine = 1.0ppmSo, the Combined Chlorine (the difference between the two tests) is .5ppmBreakpoint chlorination, in this example would be .5ppm X 10 = 5ppm. So, in this example, you would add enough chlorine to your pool to raise the chlorine level up by 5 parts per million.


What do you do if your chlorine level is too high?

Nothing you just wait for it to go down. if you have a salt water pool there is usually an aadjustment to reduce the chlorine level,


How Does chlorine Affect Acidity levels?

Depends on the type of chlorine you are using as each type of chlorine product has it's own pH level. i.e Liquid chlorine (sodium hypochlorite) has a natural pH of about 14. Trichlo products have a pH of about 3 Dichlor products have a pH of about 6.8 Gas Chlorine has a pH of <1 So based on the above lets say you are using liquid chlorine in a concrete pool, the pH will tend to be high (alkaline) due to the high pH of the chlorine product coupled with the fact the pool is concrete.


What are high waters?

High waters are exactly like what they sound like they would be. High water is when the water level is higher than normal.

Related questions

What to do if total chlorine level is at 3 and free chlorine level is at 10?

my free chlorine level is way to high above ten my pool is 12 by 24 what can i do to fix it


How can you get the cloudiness out of your pool if the chlorine level is very high and the Ph is in normal range?

Lots o filtering.


Should you shock the pool if your chlorine level is high?

You only need to shock the pool if there is visible algae, or if the ppm of total chlorine is higher than the ppm of free chlorine. Generally, a level of 2-4 ppm chlorine is all you need to keep your pool sanitary. Let the level drop to that on its own, or use sodium thiosulfate to drop it quickly if you notice itchy skin from excessive chlorine.


How do you get high free chlorine to match total chlorine?

Total Chlorine = Free Chlorine + Combined Chlorineor, put another wayTotal Chlorine - Free Chlorine = Combined ChlorineFree Chlorine is the chlorine that is doing its job.Combined Chlorine is the chlorine that has combined with contaminants such as nitrogen. It is ineffective as a sanitizer and it is noxious.Total Chlorine is the total of these two levels.To eliminate the Combined Chlorine (making all the chlorine in the pool Free Chlorine) you must shock the pool to remove the contaminants. You must reach "Breakpoint Chlorination", which is the addition of chlorine to your pool equivalent to the Combined Chlorine level times 10.example:Total Chlorine = 1.5ppmFree Chlorine = 1.0ppmSo, the Combined Chlorine (the difference between the two tests) is .5ppmBreakpoint chlorination, in this example would be .5ppm X 10 = 5ppm. So, in this example, you would add enough chlorine to your pool to raise the chlorine level up by 5 parts per million.


What do you do when your total chlorine is high and your free chlorine is low?

Total Chlorine = Free Chlorine + Combined Chlorineor, put another wayTotal Chlorine - Free Chlorine = Combined ChlorineFree Chlorine is the chlorine that is doing its job.Combined Chlorine is the chlorine that has combined with contaminants such as nitrogen. It is ineffective as a sanitizer and it is noxious.Total Chlorine is the total of these two levels.To eliminate the Combined Chlorine (making all the chlorine in the pool Free Chlorine) you must shock the pool to remove the contaminants. You must reach "Breakpoint Chlorination", which is the addition of chlorine to your pool equivalent to the Combined Chlorine level times 10.example:Total Chlorine = 1.5ppmFree Chlorine = 1.0ppmSo, the Combined Chlorine (the difference between the two tests) is .5ppmBreakpoint chlorination, in this example would be .5ppm X 10 = 5ppm. So, in this example, you would add enough chlorine to your pool to raise the chlorine level up by 5 parts per million.


What if your total chlorine is high and your free chlorine is low?

You need to shock the pool. The difference between Total Chlorine and Free Chlorine is tied up and it will be cleared by shocking. Thatis the purpose of shocking.


What do you do if your chlorine level is too high?

Nothing you just wait for it to go down. if you have a salt water pool there is usually an aadjustment to reduce the chlorine level,


Can you swim in a pool that has high free chlorine?

Chlorine levels should be between 1-5 ppm


When you use baking soda do you use chlorine to?

I didn't but my chlorine level is high and I don't know what to use to lower it.


Should you swim in high chlorine pools if you have phneumonia?

No it isn't good. You are having trouble breathing to begin with and the high level of chlorine in a pool is not good to breath.


How do you get the free chlorine level down in your saltwater pool?

To give you an accurate answer, it's important to know how many gallons are in the pool, how high is your Free Available Chlorine (FAC), and what is your Combined Chlorine Reading. Is pool enclosed and protected from sun etc? Is your chlorine generator working properly? You could simply shut down the generator and test your pool everyday at the same time. Keep records of pH, Free Chlorine, Combined Chlorine, Alkalinity, etc. It's important that you maintain a proper pH at ALL TIMES.


What happens to pH when chlorine level is high?

Since most types of chlorine are very high in PH it may effect the over all PH of the water if it is not buffered.