How do you read CYA levels???

[Lis010]

Hi!!!

I have a CYA question that I cannot seem to find answers to. After you measure your CYA and get a number, do you always round up??? I’ve read that the correlation is not linear. So does that mean any number >1 rounds the CYA to the next 10 e.g. 41–>50 for treating FC???

 

[cfherrman]

Yes, when you test your cya it's best to just pour to each 10 and glance in to see the dot, this always rounds the number and also gkanceing is a better way to have a consistent test.

Remember to pour back In the mixing bottle and do again for free till your happy

 

[laprjns]

Yes, when you test your cya it's best to just pour to each 10 and glance in to see the dot, this always rounds the number and also gkanceing is a better way to have a consistent test.

This is the way I do it. In my opinion, its quicker and more repeateable and the lighting is not as critical, just don't do it in direct sunlight. I would even go as far as suggesting that TFP used this method as their recommeded testing process.

 

[Lis010]

Thank you!!!