Green Hair Problem After Using Bioguard Smart Shock

[SnoopysGirl]

Can you tell us how much of the trichlor tabs you've used this summer.
Do you know what test method was used when you had the water tested in May? We might be suspicious of that 60ppm CYA number.

I would say a rough estimate would be 25-30 tabs. I was using In The Swim tabs from the previous owner, then switched over to the BioGuard tabs just recently, and have used about 12 of those. I believe it is the same product - trichlor - in each of those tabs.