pool cal says add 3.7oz of the cal-Hypo 48% (the shock 'n swim)
I dont have anything to lower the PH
I have stabilizer and conditioner (CYA)
should i put the 3.7oz in first or the stabilizer and conditioner?
FC was always 0, Im using the hth 4 way test strips only tests FC,PH, and TA, and...