My pool was opened this week. I had the water tested at Leslies pool store with the following results: FC=4,TC=4,CH=220,CYA=40,TA=180,PH=7.5,TDS=800. TA is high but the man at the pool store suggested leaving it alone since the PH is good. He said the TA would not hurt anything. The paper recommendation said to add 1 lb 11 oz of dry acid. Should I add the dry acid or leave it alone? Thank you.