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)
SWG
Caretaker pop ups x8
Solar panels
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!!
6/17/2016
pH 7.8
FC 0.4
CC 0.2
TA 80 ppm
CH 250 ppm
SI 0.2
CYA 0 ppm
Added 1/4 gl HCl
5 scoops powder Cl (Dichlor?)
6/18/2016
6:30am
pH 7.4
FC 16ppm
CC 0 ppm trace
8:00 pm
pH 7.2
FC 15ppm
SWG running
6/20/2016
8am
pH 7.4
FC 14 ppm
CC 0ppm
7 pm
SWG running all day
pH 7.2
FC 13.5 ppm
6/21/2016
9 am FC 11.5 ppm
7 pm
SWG running
FC 10.5 ppm
CC trace 0.2 ppm
pH 7.4
https://dl.dropbox.com/s/ecbdzs1adb4otiu/DSCN1829.jpg?dl=0?raw=1
https://dl.dropbox.com/s/g0p4ibmdkfikd31/DSCN1801.jpg?dl=0?raw=1
https://dl.dropbox.com/s/ov9w62pd281to5y/DSCN1798.jpg?dl=0?raw=1
https://dl.dropbox.com/s/q3ifzibysh2e61f/DSCN1794.jpg?dl=0?raw=1
https://dl.dropbox.com/s/y005ddi6dbj3o1t/DSCN1787.jpg?dl=0?raw=1
https://dl.dropbox.com/s/95rmuj3q5684wsm/DSCN1845.jpg?dl=0?raw=1
https://dl.dropbox.com/s/z8xgmkgdi1sgv4p/DSCN1819.jpg?dl=0?raw=1
https://dl.dropbox.com/s/wbrrj6umid0ohlf/DSCN1804.jpg?dl=0?raw=1
https://dl.dropbox.com/s/2prdkbumsnsag9y/DSCN1795.jpg?dl=0?raw=1
https://dl.dropbox.com/s/a1oz3szaqtowcj3/DSCN1826.jpg?dl=0?raw=1
Concrete pool built 2002 (I think?)
30' x 18' x 8' (+/- 15,000 gl)
SWG
Caretaker pop ups x8
Solar panels
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!!
6/17/2016
pH 7.8
FC 0.4
CC 0.2
TA 80 ppm
CH 250 ppm
SI 0.2
CYA 0 ppm
Added 1/4 gl HCl
5 scoops powder Cl (Dichlor?)
6/18/2016
6:30am
pH 7.4
FC 16ppm
CC 0 ppm trace
8:00 pm
pH 7.2
FC 15ppm
SWG running
6/20/2016
8am
pH 7.4
FC 14 ppm
CC 0ppm
7 pm
SWG running all day
pH 7.2
FC 13.5 ppm
6/21/2016
9 am FC 11.5 ppm
7 pm
SWG running
FC 10.5 ppm
CC trace 0.2 ppm
pH 7.4
https://dl.dropbox.com/s/ecbdzs1adb4otiu/DSCN1829.jpg?dl=0?raw=1
https://dl.dropbox.com/s/g0p4ibmdkfikd31/DSCN1801.jpg?dl=0?raw=1
https://dl.dropbox.com/s/ov9w62pd281to5y/DSCN1798.jpg?dl=0?raw=1
https://dl.dropbox.com/s/q3ifzibysh2e61f/DSCN1794.jpg?dl=0?raw=1
https://dl.dropbox.com/s/y005ddi6dbj3o1t/DSCN1787.jpg?dl=0?raw=1
https://dl.dropbox.com/s/95rmuj3q5684wsm/DSCN1845.jpg?dl=0?raw=1
https://dl.dropbox.com/s/z8xgmkgdi1sgv4p/DSCN1819.jpg?dl=0?raw=1
https://dl.dropbox.com/s/wbrrj6umid0ohlf/DSCN1804.jpg?dl=0?raw=1
https://dl.dropbox.com/s/2prdkbumsnsag9y/DSCN1795.jpg?dl=0?raw=1
https://dl.dropbox.com/s/a1oz3szaqtowcj3/DSCN1826.jpg?dl=0?raw=1
