Hello from warm Arizona! My family has purchased and built a 14 foot round, 48 inch deep pool. We purchased the HTH Pool Care Kit for Opening/Closing Pool, we used the test strips and HTH app to try to figure out how to get us to the appropraite levels for our 1st swim. We had it to where all but the FC (low) and TA (high) levels were good, we followed the HTH app recommendations of adding 1lb of Shock for the FC level and adding 13lbs of pH Down for the TA levels. After waiting about 20 hours, using another HTH Test Strip, FC is high, pH is low, TA is low, TH is normal and CYA is low. From everything I have read and after calling a local pool store, we are going to purchase a different Pool Test Kit so we can use actual water samples but I'll be honest - I barely passed chemistry/science. Any advice, support, prayers would be appreciated.