Don't use the shock that you have if it is cal-hypo. Instead, either use bleach or dichlor. (Please go back and reread post #2 about dichlor if this is what you want to use.) Let us know which you plan to use and then someone here will help you go from there.

Also, the limits on the chlorine test that the HTH 6-Way kit can show is 5. (That is one reason we like the Taylor K-2006 because it can test high chlorine levels.) So, when you get a chlorine reading of 5 on your kit, all you know is that it is 5 or higher. You can force it to read higher although it does lose some accuracy.

Read here: Testing Without a Good Kit

Try and keep your chlorine at shock level which would be around 12. See the Best Guess Chlorine Chart in Ben's signature. As your CYA level comes up, so does your shock level.