32000 gallon ig vinyl. Read a huge amount here and pf about baq conversion. Put in 20 gal of 5.25% 6 days ago.. No reaction as everyone describes. No changing colors or anything just clear water with winter stuff in it. Have been cleaning out normal bottom dead algae and leaves from winter. Water is crystal clear. Tested yesterday Cl 0, Cya 0, PH 7.9-8.0, TA 80. So should I bother to change the sand as I don't seem to have the "goop" many plp describe. 2 yr old sand. Or can I add the cl and cyanuric acid and muratic acid? Muriatic acid 1st or last? CH I did not test is it correct that this is not an issue for vinyl pools? I will be ordering a Autopilot tomorrow so hopefully will be salt water in a week.