It looks like you have no chlorine and that is why it didn't turn pink when you added the powder. Your pH is ok at 7.2 but you might want to bump it up just a little to 7.4-7.6 with a little 20 Mule Team Borax (laundry aisle at Walmart). Also, your calcium level is a little low. You might want to chlorinate with Cal-Hypo for awhile as it will add needed calcium. You'll want your hardness level to be somewhere between 200-400. if your CYA test was clear to the top it means that you have less than 30ppm, so you'll want to add a little. Without it, your chlorine will quickly be lost to the sun. A good level is 40-50. I wouldn't add too much at a time as you don't want to overshoot your target.

Hope this helps!

EDIT -- Just noticed that you have an SWCG. Look at your manual for recommended CYA level instead of aiming for 40-50.