Hello, I have adopted an in-ground pool as a result of a new home purchase last year. Previous summer the pool was sparkling and clean and I used granular chlorine, buffer ,and Oxibrite (non chlorine shock) the entire season. No issues. Their was no heater on the pool, we live in Toronto, Canada.
This year we added a heater and the season started out great! 83 degrees and everyone is happy. The past week the water has gotten cloudy and I notice a fine brown sediment at the bottom of the pool on a daily basis. We have recently had a warm spell with temperatures reaching about 90 during the day. I have still been using the granular chlorine and Oxibrite. Went to local pool store and they recommended a clarifier which didn't do much when added for one day. I had my water tested:
Tot Chl: 5.3
Adj. Total Alk: 82
After reading a few articles I realize the CYA is very high, however the pool store print out says acceptable range is 30-200!
I have now added a 5 L jug of liquid chlorine and another 1 KG of the shock. I have also started to drain a few inches off the top while adding fresh water to the pool.
Any ideas for a newby?