I love you ... it's ruining my life... the foam era

I want to love my hot tub, but I can't get rid of the foam. I have purged it, added calcium, added aqua clarity. I drain it and then refill it, and it foams before anyone even gets in it. I drained it and filled it a second time, and still SO MUCH FOAM. I am losing my mind over the foam. It is like a bubble bath, the foam pours over the sides of the tub. Please someone help me make it stop.