Hello,

I have a 15,000 gallon above ground pool. I have had many algea problems this year. i have used the polyquat, shocked it and no luck. it was blue for one day, and then green again. here are my test results as of 10 minutes ago

ph. 6.8
fc 7
ta 80
cya 100

ive tried shocking all the time, we have the chlorinating tablets in the pool. i just dont know what to do anymore. any help will be appreciated.

thanks