Ok so I added 1 3in chlorine puck that the previous owner had in storage to the skimmer basket. How much should I add over all to raise the CYA to the min acceptable level of 30ppm Looks like it should take 10 pucks to get to 30ppm CYA and it should get the FC levels up as well. It might lower the PH though..I can add Borax...I am trying to get to a point where I can BBB.