We have a 16x32 AG pool 4 years old with vinyl liner (new this year), 4'-6' depths. Hayward sand filter, with Frog cycler. We noticed cloudy water approx 2 wks ago, turned green about 10 days ago. Initially had water tested at pool store, Alk was around 70 (added baking soda), ph was a bit high (addsd reducer), chlorine was 5.9 (we had turned it up couple days before). No change after doing these things. Had water tested a couple more times and Alk/ph stabilized but chlorine at a 10 now. But pool was greener. This past Friday (4 days ago) :
They were stumped at the pool store and said my chlorine level should be killing the algae (I asked about shocking, as we hadn't at all yet and they advised no that it wouldn't make a difference???), and said to try changing filter sand (which my son and I did Sat morning). They were stumped basically. This changed nothing with my water. I had been using strips, which I realize now are useless and have since ordered the Taylor k-2006. Anyway, Sunday night I put in 4 gals of liquid chlorine. No real change visibly in the water yesterday....last night added 4 more and FINALLY today it is pretty much blue but VERY cloudy. My question is, do I add more tonight again and if so how much? My filter has been running continuously and my Frog cycler set on 5-6. Thanks for any help!