Last week there was some algae on the side in the deep part. I brushed it. Today there was some green in the corners in the shallow end. I brushed it. There was a green hue as I brushed the whole shallow section. My tests all along have been 4.0 cl, 80 alk, and I just brought the ph down from 8.0 to 7.8 on Sunday, cya 50. Should I slam?