You'll need a test kit or test strips.
OTO drops (turn yellow) are available cheaply at places like Walmart, and provides a reliable and fairly easy to read test.
Test strips use a chemical, syringaldazine, that turns bluish. This is also a reliable test for chlorine, but is not quite as easy to read. Also, the other parts of pool test strips, especially the alkalinity and stabilizer pads are NOT reliable.
DPD tablets turn pink in the presence of chlorine. They are pretty easy to read, and very reliable for levels of chlorine less than 10 ppm. Above 10, they can 'bleach' out, and read zero, even though the chlorine is very high.
DPD-FAS turns pink when chlorine is tested, and then back to clear as the FAS is drop-counted it. It is the most reliable and accurate method, but also more expensive and 'fiddly'.
For starters, I'd recommend OTO drops.
Pool store types will tell you that OTO doesn't distinguish "Free" and "Total" chlorine, which is true. But, unless you add a bunch of cheap algicide, or something like "Yellow Out", OR let your chlorine levels yo-yo around . . . it doesn't matter on outdoor pools. If you do have "Total chlorine" or, really, "Combined chlorine", simply maintaining a good constant chlorine level for several days will make it 'go away', at least on outdoor pools.
Probably not; a pH test strip would work, however.
Standard Test Method for Residual Chlorine in Water
What does it mean if the chlorine test turns orange - What does it mean ...
for the metal
you'll need a water test kit or dip stick test.
Probably not; a pH test strip would work, however.
Standard Test Method for Residual Chlorine in Water
Test strips is used to test concentration of chlorine sanitize. The test is dipped into the sanitize.
Test strips is used to test concentration of chlorine sanitize. The test is dipped into the sanitize.
You would first test the water then add either liquid, granular or tab chlorine until you have sufficient readings on the test kit. k
What does it mean if the chlorine test turns orange - What does it mean ...
Determining sodium or chlorine by analytical chemistry methods. In the flame test the color is yellow (from sodium radiation).
Chlorine burns green in the flame test, bottle green to be exact.
Chlorine test strips are used for testing the amount of chlorine in water. These are used in daycare kitchens, hospitals, and in most types of food service.
That usually means high chlorine. Try doubling the amount of chlorine neutralizer on a second test.
for the metal
Use a test strip or test kit. They will tell you your chlorine level. You want it between a 1 and a 3.