i will order that test kit today! using test strips only the results are at 3:00pm est, TC 1, FC 1, PH 7.2, TA not quite 120 color on the strip but close and cya is still showing 0. i had put about 5-6 cups in the sock and most of that has now disolved. i only have the sock in front of 1 jet, do i need to put any in front of another one or just continue with this one. and how much more should i add? thanks again. you are such a big help!!!!