Hello! First time here. I need a little help with my situation please. I was told by my local pool store that I have nitrates and that I may have to drain my pool. My pool was dark green when I opened it this spring. It is now light green, and I cant seem to get the "green" out. I was also told I have Chlorine lock. From what I understand, I should use liquid shock or Bleach until I start seeing FC. Right now I have 0.4 FC. I shocked a couple times and im showing about 5.0 chlorine. I guess im not sure how much bleach i would use to do the trick., ive never used bleach. Here is my analysis from the pool store. Or do I just shock the heck out of it with normal shock? Thanks for replys!
CYA - 38
Tot Chlor.- 5.0
FC 0.4
PH- 7.6
Tot Alk. 91
adj Total Alk. 80
19x37 inground
heyward sand filter.
around 19k gal.
CYA - 38
Tot Chlor.- 5.0
FC 0.4
PH- 7.6
Tot Alk. 91
adj Total Alk. 80
19x37 inground
heyward sand filter.
around 19k gal.