You can continue to use bleach for your chlorine in this pool--you'll just have to add your stabilizer (CYA) seperately. You can get that at any pool store, but WalMart (at least the ones down here) sell it in the spa section. It's often labeled conditioner, or balancer, but if you look at the ingredient label, and it says cyanuric or isocyanuric acid, then that's the right stuff.

Welcome to the forum and to the world of pool ownership!