I’ve been dealing with grey dots piles of “dust” for lack of a better word to describe them. They disappear easily when I brush, but then are back the next day.
I recently did a partial drain to lower my CYA. Because of that, my PH is high and alkalinity is low. I also had a small green algae outbreak during the pool drain, since my city required me to remove any chlorine before draining into the sewer. I’m addressing the ph and alkalinity as we speak, but I’m worried about the spots being black algae.
Photos are attached.
Here are my current levels:
Ph: 8.2 (adding acid tonight)
Alkalinity: 63 ppm (just added more)
FAC: 10.5
TAC: 11.2
CYA: 75
CH: 226
TDS: 1000
I recently did a partial drain to lower my CYA. Because of that, my PH is high and alkalinity is low. I also had a small green algae outbreak during the pool drain, since my city required me to remove any chlorine before draining into the sewer. I’m addressing the ph and alkalinity as we speak, but I’m worried about the spots being black algae.
Photos are attached.
Here are my current levels:
Ph: 8.2 (adding acid tonight)
Alkalinity: 63 ppm (just added more)
FAC: 10.5
TAC: 11.2
CYA: 75
CH: 226
TDS: 1000