How to figure out cyanuric acid without test kit??

[red7272]

I live in Africa with limited pool resources. I can buy stabilizer but I have no way to test for cyanuric acid. In a few months I can get a test kit from the USA but I need to know how much stabilizer to add today. Attached is the well water I used to fill the pool. Since then I have added acid and chlorine and gotten the pH and alkalinity in the normal ranges. Is there any chance well water has cyanuric acid in it or can I assume it has zero in it? If zero, then I would add the appropriate amount of stabilizer today and then start testing later. What do you think?
Thank you for your help.
Best,
Patrick

 

[duraleigh]

CYA doesn't occur naturally. Since you started with zero, simply calculate the dose and assume it's there.

 

[Bama Rambler]

What type chlorine have you added?