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Hello, I'm barely 2 months into owning and it took that long to find this amazing site. I started reading pool school, and I noticed the chl/cya chart and it mentions fc shock rate. I have a swg. Can someone explain shock rate to me and how/when to raise it to the recommended level. My CYA...

Hello, So, I have done a lot of research and there seems to be too many possible causes to the problem I am having. Like many others I am getting a 0 FAC reading, yet almost all of my others #'s are close to great. I cannot nail down an exact time at which this began to occur. My pool was...