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  1. M

    Time between adding dry acid and chlorine

    Thankyou! For some reason I thought the wait time was longer in between sodium bisulfate compared to muriatic acid. Same timing, 30 mins, right? mind, I thought that because dry acid in powder form instructions said to circulate for at least 4 to 6 hours.
  2. M

    Time between adding dry acid and chlorine

    Total newbie here. Vynl pool....I'm using dry acid (sodium bisulfate) to bring PH down before SLAMING. How long do I have to wait after adding dry acid and high levels of chlorine?