Hello all, I just had a 30' Round pool with vinyl lining relaced after 17 years of service. It's about 21,000 gallons and I am trying to figure the chemicals because my pool guy retired. I have an inline chlorinator installed but haven't used any tablets yet. I have added 3 gallons of chlorine and dissolved 1 pound of conditioner/stabilizer in a sock in the skimmer. The PH tests at 7.6. The alkalinity is 140 ppm. I am wondering where to go from here since this will be the first year I am doing it on my own. Do I add another pound of conditioner to the skimmer? I assume it will probably take around 5ish? Will that bring down the alkalinity or do I need to add mauritic acid? I would appreciate any help I can get! Thank you!