Was battling with pink bacterium a few weeks ago.
Using dichlor for the last two years almost exclusively.
got rid of the pink bacterium I thought, then it started to come back, had the pool store test the CYA....you guessed it 100+.
So I ordered the big test kit from tft. Started reading and noticed I was doing it all wrong.
So I drained water until I had about 1 foot in the shallow end and refilled. CYA test at the pool store 100+.
pool is starting to get a green ting to it and gray stuff is starting to accumulate
Drained water again to try to get the CYA down so I cold treat it.
Re filling this morning and the green explodes. Threw in a bunch of cal-hypo
Test kit came in!
diluted the pool water with drinking water 50% and CYA test of 60. So I still have 120 CYA.
Calculator says to shock at 28, I'm at 31 FC and it seems to be holding well.
Still green, hasn't flipped to aqua.
I was going to close next weekend. Do I continue the slam or wait for the water to get cold and try to kill it off in the winter?