I have a 26,000 gallon above ground pool in southeastern Indiana. When I opened the pool it was green but now it is crystal clear and the pH and alkalinity are balanced. After clearing up the water I rechecked the CYA level and it was 80. (I have not added any conditioner to it yet this year).My local pool supply store is telling me that I need to add conditioner every year to the pool. Is this true if my CYA level is already 80? And is it normal for pool water to still have some conditioner in it after a long cold winter? Thanks for any input.