With the addition of the K-1515, you will basically have the K-2006.

If you got a CYA reading of 70 with a 50:50 dilution, then that means your reading is actually 140. You will have to shock to 25 while you are fighting to clear your water and then once it is all cleared up, you'll have to be diligent about keeping your chlorine between 8-15 ALL the time or you'll be right back where you started!

Your pH is good at 7.6.

Run your pump 24/7 and clean the filter as needed. Hang in there!

EDIT to add ---- Can you please make a signature line which gives the type of pool, volume, type of filter, size of pump, any other equipment you have and also the type of test kits. That makes it easier for us to help instead of having to continually scroll back up looking for details about your pool. See the link in my signature for how to do so.