We have AG 21 x 54 cartridge filter pool, new in 2014. Never really had problems (that I was aware of, as they say, ignorance is bliss) until this year.
We had a fair amount of rain in 2 weeks (6 inches) so I shocked with granular 56 (did not realize it also contained stabilizer, you know where this is going) Last week Monday 6/25, I noticed pool was getting "milky cloudy" or more aqua colored (not green) and having some small green algae patches on bottom. Kept filter running and vacuumed and scrubbed twice daily. During this time my levels were "normal" except CYA was reading above 150 on strip (yep, I learned I need to purchase better method). Went to pool store and they commented on high stabilizer level but did not make any suggestions other than to "liquid shock and use clarifier."
I wasn't sure on their advice so I started reading here about cloudy water and high CYA. Drained pool 1/3 way x 2...brought CYA level to 111 (per machine ran test at different better pool store). My strip was also reading the same at "100" which on strip says "normal." However I am learning here that is still to high. We also replaced filter on Saturday as we realized that our filter was not properly sized for our pool. The filer was 150 sq ft and we are supposed to have 200 sq ft, I guess according to spouse. Thanks again pool store for giving us wrong filter.
As of this morning, pool looks 95% clear. Readings on strip (sorry all I have right now) pH is about 7.2, Chlorine between 5-10, ALK 120, CYA remains around 110. A few tiny patches of algae possibly but not really like before.
What to do? Drain more water and replace to lower CYA? Keep FC at 11-13 and be able to swim since its hot?
We had a fair amount of rain in 2 weeks (6 inches) so I shocked with granular 56 (did not realize it also contained stabilizer, you know where this is going) Last week Monday 6/25, I noticed pool was getting "milky cloudy" or more aqua colored (not green) and having some small green algae patches on bottom. Kept filter running and vacuumed and scrubbed twice daily. During this time my levels were "normal" except CYA was reading above 150 on strip (yep, I learned I need to purchase better method). Went to pool store and they commented on high stabilizer level but did not make any suggestions other than to "liquid shock and use clarifier."
I wasn't sure on their advice so I started reading here about cloudy water and high CYA. Drained pool 1/3 way x 2...brought CYA level to 111 (per machine ran test at different better pool store). My strip was also reading the same at "100" which on strip says "normal." However I am learning here that is still to high. We also replaced filter on Saturday as we realized that our filter was not properly sized for our pool. The filer was 150 sq ft and we are supposed to have 200 sq ft, I guess according to spouse. Thanks again pool store for giving us wrong filter.
As of this morning, pool looks 95% clear. Readings on strip (sorry all I have right now) pH is about 7.2, Chlorine between 5-10, ALK 120, CYA remains around 110. A few tiny patches of algae possibly but not really like before.
What to do? Drain more water and replace to lower CYA? Keep FC at 11-13 and be able to swim since its hot?
