I am in the process of having my pool installed. A 22300 inground pool. My main source of chlorine will be through a SWG. My question is in regards to starting up my pool to get ready to close it. I am assuming I will be balancing my water and potentially shocking, just to close it for the winter. In doing so, how do I go about adding CYA for the first time. I have a T100 test kit, have tested the hose water that I will be using to fill the pool (starting this weekend), and CYA tests as 0. I have read through pool school and see how first level to set is my CYA to 70 - 80. In using the pool calculator I need to add 200+ oz of CYA. Reading the material on here I see how it states to add this to the skimmer with a sock. How does one fit 13 pounds of CYA into a sock? DO i add as much as I can into 1 dose, leave until is dissolves, then continue adding until i reach my target? Iamb sorry if this is a dumb question, but want to get my pool running right the first time as to not have to try to correct something in that went wrong in the future.