Ok. With some numbers, we can help. (You should get a good test kit so you can do this yourself without having to rely on the pool store. Check the link in my signature for how to buy the Taylor K-2006 or 2006C from Amazon. Pool Forum also makes a little from the sale.)

With a CYA of 40, you need to shock your pool up to 15 and try and keep it there. I don't know the volume of your pool, so can't suggest an amount of bleach to add. (BTW - a CYA of 40 is a good level, so you don't want to use any stabilized forms of chlorine (trichlor or dichlor) which will make it go higher. I would also suggest not using cal-hypo as you don't need that reading to get any higher either. Stick with bleach for your source of chlorine.)

Your pH is a little high. You can use some muriatic acid to lower it. Start with about a cup poured slowly in front of a return jet. Do not spill or splash it and stay upwind of it and wear protective goggles and gloves. After letting it circulate awhile, retest pH and then redose until you get the pH between 7.2-7.8.

Repost with the volume so we can suggest proper dosage for bleach.