Hi: I am PAPABEARCARE from Maryland and have had a 40K IG Pool since 1991, ... and have never before had Algae Issues.
I have been struggling w/green algae for the past 5 weeks. It has gotten better over time, but, I have spent Mega $$$$, and I still have a "milky green pool". (has gone from forest green, to presently milky green).
I have done two "Yellow Out" treatments, with little results, ... but, I think I discovered yesterday that my PH is very hard to get up! In hindsight, I realized that when I used Yellow Out, I simply looked at the Application Chart on the Soda Ash container and added 10#'s, without testing.(I simply assumed the PH would reach 8.0) I now know this was not the reslut.
The reason I know this was not fact, because yesterday @ 3:00PM, my PH was 6.9, ... I added 35# of Soda Ash ( I kept adding 10# at a time, and little or no affect) last evening, and my Ph this morning is 7.3.
I believe that I have never gotten to that "Burn Out Level w/Chlorine" to zap the Algae, ... but, ... allow me to suggest, I am asking for your professional opinion as to where to go from here!
My current Test Results as of 10:30AM today are: 40K IG Plaster Pool
I had added 25# of Sodium Dichloro (Anthony/Sylvan Super Pool Treat) yesterday @ 3:00PM 6/30/09, ... which was in addition too 35# the day before 6/29/09, along w/10# of Soda Ash each time.
Current water condition: Cloudy Milky green, ... can barely see the second step at the shallow end.
Please help get me pointed in the right direction!
40k IG Plaster Pool