Welcome to TFP!
Your first step should be to dig into some of the articles on this site, in Pool School. Specifically, I'd start with
ABCs of Pool Water Chemistry.
If you feel that the methods taught here on this site are for you and are willing to educate yourself and take control of your own pool, then you're half way there.
Specifically what kit do you have on order? If it's the K-2006, then you're off to a good start. It doesn't have the best value for your money for reagents, but it has all the tests you need. I would have recommended the TF-100
http://tftestkits.net/TF-100-Test-Kit-p4.html with the XL option, because you're going to be SLAMing your pool. The K-2006 will get you started though.
1 - Test your water with your own test kit once it arrives. It's going to give you more reliable results than the pool store. Post those results when you get them and we'll help you from there.
2 - If your CYA is actually 110, your first priority is to lower that to a more reasonable level, such as 50-60 ppm. The lower the better when you need to complete a SLAM but your CYA after the SLAM in Phoenix is likely best in the 40-70 range, depending on your chlorination type.
3 - Add the details of your pool to your forum signature. You can do this by clicking Settings, then Edit Signature and make sure to click Save after you've added the details. Check out other people's signatures for ideas. The important things to have in there are your pool surface, volume, filter type and any other details you know. Also, most importantly let us know what kind of chlorine sanitation you're using. Are you using chlorine tablets? Liquid chlorine? A salt water chlorine generator? Of those three chlorination methods, tablet are NOT recommended for long term use on this site. Each tablet adds CYA to your pool which many times leads to unmanageable CYA levels. Liquid chlorine (aka Bleach) or SWCG is recommended.
Also... is there evidence of metal staining? You may have high/elevated metals but if there is no staining... Nothing to worry about, yet. You may not know you have staining until you get the algae cleared up.