**We have and above ground, sand filter, Hayward pump. 15,000 gal. **
Before we went on vacation I shocked our pool. Luckily my tf 100 test kit came in while we were gone! My sil ran our pump every night. Came home, the pool is green. Or readings are 0 cya and 0 fc with the highest rating on the ph. I know we need to get some stabilizer to raise the cya. But I do not understand the chart in pool school on how much shock I need to buy to slam my pool. So if it says 10, is that 10 gallons? Please forgive my ignorance in this I'm still a newbie!!
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