Yes, you can laugh if you want.
Looking at the Chlorine/CYA Chart. Opened my pool this morning. Adding in about 1/3 water back in pool (pool is 29,700 gal. so roughly 9,000 gal adding in).
Pool looks crystal clear. No smells. Once I fill to jets and start pool up I will test with my TF-100 Kit.
My initial question (so I’m understanding this) as an example if my CYA is say 50 my target Chlorine level should be 5.7? That seems really high. My test kit for the daily quick check (k-1000) only goes to 5.0ppm. Trying to get up to speed again... I always thought you want your chlorine at about 3-5 regardless of CYA?
I use the BBB method. Last year my CYA on average was about 50. I maintained my Chlorine between 2-4ppm. According to this chart that was way to low.
Confused. Help clarify please.
Also regardless of my current pool condition (which is clear, looks and smells great) do I still need to “shock” for pool opening? I live in Wisconsin home of the snownomie!
PS. my pool will be full by morning so I will startup pump by noon tomorrow.
THANKS FOR ANY ADVICE...go ahead and laugh now