Sunday, 8 August 2021

What happened to my CYA

It’s been one year that I have been maintaining my pool.
I consistently had CYA above 90. So I’ve been keeping my FC around 10. Water is crystal clear and I only use liquid chlorine thanks to TFP.
My April reading was again CYA 90-100. However, in the past few months we have been experiencing very hot summer here in So. California. Almost every day or so I have to add chlorine to maintain my high FC. I figured it’s because of the sun exposure.
I did a CYA test after 3 months as I have...

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