Does the amount of powder affect test results? I’m never sure how “heaping” to make my heaping scoop. Just performed the test twice in a row (during SLAM) and counted 21 drops the first time, and 24 drops the second time.
Chlorine drop test
- Thread starter pfitz4
- Start date
The amount of powder you use may affect the results. The powder is made of a combination of chemicals. I wouldn't put too much thought into it, but have a mound on top of the dipper.
Are you doing the 10mL or 25mL sample size?
One important thing to do when adding drops is to try to be consistent with drop size. Squeeze the bottle until the drop kinda hangs before it falls off the tip. Drop no quicker than 1 per second. See if these help you get consistent results.
Are you doing the 10mL or 25mL sample size?
One important thing to do when adding drops is to try to be consistent with drop size. Squeeze the bottle until the drop kinda hangs before it falls off the tip. Drop no quicker than 1 per second. See if these help you get consistent results.
The amount of powder is not critical. If your sample turns any intensity of pink in the presence of chlorine, you have enough powder. Don't worry about it. Here's the two most common testing errors for that test.
1. The sample never turns pink so many assume their powder is bad when, in fact, they simply have no (as in ZERO) chlorine in the pool.
2. This pertains to all drops based testing.....not just chlorine. You must continue to add drops until the last drop you use results in NO color change whatsoever. Then you subtract that drop that made no difference and what's left is your true result.
As stated above, the bottle of reagent should be held vertically and the drops allowed to fall from the tip.
1. The sample never turns pink so many assume their powder is bad when, in fact, they simply have no (as in ZERO) chlorine in the pool.
2. This pertains to all drops based testing.....not just chlorine. You must continue to add drops until the last drop you use results in NO color change whatsoever. Then you subtract that drop that made no difference and what's left is your true result.
As stated above, the bottle of reagent should be held vertically and the drops allowed to fall from the tip.
Thanks! My mistake may have been the drop speed. I am doing the 10mL sample. I use a medicine syringe to collect an accurate amount of water.
Similar threads
