Hi! I would really like to get an opinion on my pool surfaces; at first I thought it was purely old pool concrete erosion, bleeding toes etc... but now I am freaking out that I have a massive algae attack! Help.
Concrete pool built 2002 (I think?)
30' x 18' x 8' (+/- 15,000 gl)
Caretaker pop ups x8
Venturi filter on main drain
Northern California - lots of sunlight
82 - 84 F
I rebuilt caretaker system 6 months ago and erosion seams to be accelerating.
Water has no visible cloudiness, seems nice and clear.
The brown and black algae looking stuff is impervious to a wire brush.
I recently became aware that my SWG performance was very poor FC 0.4 ppm 0 CYA (Yes I know - I am learning!!) and started to get a green ring on the tiles (since disappeared after shock).
I have recently taken action upon reading this website and done the SLAM and I have CYA ordered.
I would really like to get the benefit of some experienced eyes on the pool. Apart from the bottom of the pool the water looks great and clear in the sunlight, CC almost non existent. Many thanks!!
TA 80 ppm
CH 250 ppm
CYA 0 ppm
Added 1/4 gl HCl
5 scoops powder Cl (Dichlor?)
CC 0 ppm trace
FC 14 ppm
SWG running all day
FC 13.5 ppm
9 am FC 11.5 ppm
FC 10.5 ppm
CC trace 0.2 ppm