I have a black algae problem and so I raised the chlorine level to combat it. However I forgot to test the CYA level. When I did it seems to be 0 (not a test I have a lot of faith in). The CYA manufacturer recommends a chlorine level of 1-4 before beginning. Is that really necessary? If so I guess I'll have to get a chlorine lowering product. I hope to hear back soon as the black algae is going to town!
saltwater pool
CL 15
CC 1
pH 7.4
CH 270
TA 100
water clear
saltwater pool
CL 15
CC 1
pH 7.4
CH 270
TA 100
water clear