Chlorine
Add sodium bicarb to raise pH. Chlorine will go down by itself or add sodium thiosulfate
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.
add acid and chlorine. or better still take a sample of water to your pool shop where they will test it ad tel you exactly what you need to set it right,
Do you mean that adding a little chlorine made the reading go from 0 to a higher level? You should shock your pool once a week with 1L of liquid chlorine per 10000L of water in your pool. You need to add enough chlorine to break apart the combine chlorine (the combination of chlorine and dirt which doesn't sanitize.) If you don't add enough at once, it will be used up and the chlorine reading will remain low.
Do you have a chlorine generator? No.
Add chlorine and stabilizer.
Add more chlorine.
Sea water contains a low concentration of bromide ion which is oxidised to free bromine Br2 by chlorine.
Add more chlorine. More to it than that. Test & if necessary correct the pH first - that's important. Calculate correct dose rate of chlorine & add accordingly. If it's an outdoor pool switch to stabilised chlorine if not already using it.
make sure chlorine is is at 1-3ppm, if pH is very low raise chlorine slightly higer than average. shock the pool after and run filter for over night. If pool still not stabilize then add PH high chemical.
Add sodium bicarb to raise pH. Chlorine will go down by itself or add sodium thiosulfate
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.
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.
That depends on the size of your pool and the level of salt your chlorine generator needs to properly function (usually 3200-3400ppm). If you do not have a quality salt test, I recommend bringing a sample of your water to a local pool store to be tested. Bring your chlorine generator's manual with you and they will help you find where it shows how much salt to add. If your pool has been low on chlorine for more than a day or two, or if the water is cloudy or green, you will need to add some liquid chlorine to assist the chlorine generator in clearing it up.
Yes, add both before the pool turns green. Make sure that you are using a liquid test kit, because the strips always show chlorine as too low unless it is too high. Hatawa
go to the local market that you get chlorine at and pool shock. buy test strips that test the water's chlorine, and just add an extra chlorine tablet each time you add chlorine. if its still really low and not even close to the amount you may want to add pool shock
If you are getting a low reading of chlorine in your above ground pool, you should add the appropriate amount of chlorine to get it back to the correct level. This is important to keep your pool running at maximum abilities.