total and free chlorine 10

[Linda79]

Please Help
Th 500
TC 10
FC 10
PH 7.8
TA 180
Stabilizer 100
How do I fix this? Is it safe to swim? Our first year owning a pool what test kit should I be using?

[Denniswiseman]

With a CYA of 100 your chlorine level should be between 11-13 as in Chlorine / CYA Chart
Totally safe to swim but you would be using a lot of chlorine
You really need to get your numbers in line with these Pool Levels
The best test kit is a Taylor K2006C or a TF100
I assume you are using pucks because of your high CYA, you are better using liguid chlorine which doesn't add any CYA
For every 10 ppm Free Chlorine (FC) added by Trichlor, it also increases Cyanuric Acid (CYA) by 6 ppm.
For every 10 ppm FC added by Dichlor, it also increases CYA by 9 ppm.
For every 10 ppm FC added by Cal-Hypo, it also increases Calcium Hardness (CH) by at least 7 ppm
Liquid chlorine (bleach, sodium hypochlorite)
Muriatic acid (hydrochloric acid) to lower pH and TA
Bicarbonate of soda to raise TA
Aeration will raise pH
To lower CYA a partial drain and refill. To get down to 50ppm you would need to drain 1/2 the water if it's safe to do regarding your water table