Trouble with Chlorine levels and recurrent yellow algae

[timthek]

A big part of accurate testing is constantly stirring, it really helps with your tests. I have both and love them.

How comfortable are you that the CYA is 110? Did you get that with and extended/diluted test or "it's just a little over 100"?

I started with 200+ CYA and took about 18 months to work the CYA down to my current 50. You just have to be diligent in keeping the FC where it needs to be.

With a 50% dilution it registered around 60, so it is probably closer to 120....

 

[timthek]

Just for the record, After a couple of weeks my pool is so clear if I put a newspaper on the bottom of the deep end I think I could still read it from the surface!

Going to drain and refill this weekend while the kids are away.

Thanks!

 

[timthek]

10,000 gallons and 25hrs later, my pool is back in business and crystal clear!

 

[pooldv]

Nice work!