What kind of algae

[essikr]

Update kept adding and got the chlor level to 10ppm.Had to leave for three days when I got back it was at 0,slight visible algae. Got the DPD powder while I was gone.For info I did a bucket test on the 12.5% (10 liters of chlorine free water,1ml of liquid chlorine.Tested at 6+ppm. I followed your advice and did the following:
8/23 put 5 gallons of 12.5% chlor at 18 ,brushed and vaced
8/25 chlor at 11ppm
8/26 lots of swimmers,didn't measure
8/27 chlor 8.0,PH7.3.alk 125,CA 125

I want to close the pool before leaves fall here in Ohio. Should I do anything more than my routine winterizing? I'm thinking I have or had some type of algae problem that was eating up the chlorinehad si

[Watermom]

Make sure there are no signs of any algae before you close.