We have been dealing with green algae for 10 days now. Literally overnight it went from cloudy to neon green that couldn't be seen through. My husband shocked it once and added algaecide and waited 5 days. I have now taken over after finding your site. I have a T100 test kit being shipped, but for now, I am having to take water to pool store for testing every day. We were able to get color from non-opaque neon green to cloudy mint green by yesterday. My husband has been cleaning cartridge filter every day for 10 days, but we have seen no change in pressure. It reads at 14psi clean & hadn't changed. In fact, today, it is reading 12psi and he didn't get around to cleaning it last night.
Yesterday (Monday)the readings were as follows, after a gallon of 12.5 liquid chlorine & ph reducer on Saturday:
Added 2-1 lb bags pH reducer yesterday, then 1-1lb bag stabilizer to raise CYA, then 1 gal 12.5% liquid chlorine after dark. This morning test was as follows:
CYA- 94 (!) - I didn't even add as much as pool calculator said I should.
Water color has not changed since yesterday. Brushing pool twice a day, filter.ca been running 24/7 for 10 days. Lol vacuum runs cycle twice day. What are we doing wrong? What do I do now?