Newbie to this site and want to say thanks to everyone for sharing your knowledge. Okay, I thought that by having the pool store test my water every 7 to 10 days and following all their recommendations everything would be great and it was until last year. Have been using baquacil and last year had it all -- pink slime, green water, green algae appeared overnight covering half the pool and then black spots the size of quarters and nickels all over the bottom of the pool. Pool store said it was black algae which I now question after reading your site since I have vinyl. Could one of the three algacides they had me use cause this? We tried several times to scrub the spots but they did not budge. Winter cover still on with 40 degree nights. Have new test kit, new media for filter, stockpile of bleach and have read your instructions for conversion at least 25 times preparing for the challenge ahead. I am curious since most members deal with raising the PH. My PH levels consistently showed 8+ and I have been using a product called PH Down. Am I correct that I will need muriatic acid to correct high PH?
Thanks again for all your knowledge and patience as I know I will be asking a lot of questions in the near future. I am looking forward to not driving 25 miles for water testing and $$$ worth of chemicals especially since they caused nothing by headaches all last swim season.
Thanks again for all your knowledge and patience as I know I will be asking a lot of questions in the near future. I am looking forward to not driving 25 miles for water testing and $$$ worth of chemicals especially since they caused nothing by headaches all last swim season.