rowiac
0
- Apr 20, 2018
- 84
- Pool Size
- 26000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool Core-55
The FAS-DPD Chlorine Test should not difficult if you are doing it correctly. 10 ml pool water, reach as far down in the pool as you can. 1 scoop of R-0870 powder. Swirl. It will turn pink if chlorine is present. Count drops of R-0871 reagent. Each drop of R-0871 represents 0.5 ppm of chlorine. Swirl after each drop and keep going until it turns clear. I use the SmartStir which eliminates swirling by hand, and it has an LED light to make it easier to see the color change.I got my test kit and if I did everything correctly....here are my numbers: (The FC was the most difficult to get an accurate reading) Also, I did the testing after a moderate thurnderstorm.
FC 6ppm
TC 4ppm
CYA 60
PH 7.9-8.0
Alkalinity 110
Hardness 230-300
I was finally able to get the chlorine to hold for a few days. It took about 7 gallons of liquid shock over the course of 5 days.
It is a 24-foot round above-ground pool with approx. 13,000 gallons.
Typically the most difficult test to do is the CYA test. It's kind of subjective and I can't really do better than +/-10 ppm.