Lost my how to test instructions

Until today, it looks like your last CH test from 7 months ago was 100. You reported CH of 80 today.
Your signature shows you have a gas heater. You need to increase your CH to at least 200.

TA of '45' gets rounded up to 50.

Your FC is way too low.
I'd suggest an Overnight Chlorine Loss Test - if you pass, increase your CYA in anticipation of increased temperatures and dose FC according to the FC/CYA Levels chart for a non-SWG pool.

What is your salt level?
What is your water temperature?
I had n't really gotten a good idea of what the salt level is yet because I don't know how to test it without the new salt meter I got and the directions for the salt meter re how to calibrate it are very confusing. But I'm sure we need some. Ask for the pool heater we've never even turned it on so I don't think that plays into the scenario. Pull temp has been around 76 - 78 the weather has been weird, it'll get warm and it gets pretty cold again like you know 65 or so sometimes 60 and we've had a lot of rain but generally during the heat of the summer it stays around 80 so it's not that far off. I will work on the instructions you gave me and will follow up with you. Thanks for everything as usual. You do know that I will learn this eventually. My brain just doesn't always work with me very well.
 
Until today, it looks like your last CH test from 7 months ago was 100. You reported CH of 80 today.
Your signature shows you have a gas heater. You need to increase your CH to at least 200.

TA of '45' gets rounded up to 50.

Your FC is way too low.
I'd suggest an Overnight Chlorine Loss Test - if you pass, increase your CYA in anticipation of increased temperatures and dose FC according to the FC/CYA Levels chart for a non-SWG pool.

What is your salt level?
What is your water temperature?
 
Cool math is updated as of today like before please read the notes. We're in trouble with the chlorine it's reading at zero so let me know how much to add and what else to do. Thanks a lot,
M
I'm pretty bugged out about the chlorine I'm going to go ahead and add what was recommended last time since I didn't do it because it started raining so I figured it would throw it off anyway. That probably wasn't a very good decision but there you have it, I don't know what to make the best decisions in life lol!
 
Rain won't throw anything off. Start by putting 1/2 gallon of liquid chlorine in the pool, run the pump and check your chlorine again 1/2 hour later. Your CYA is low so you need to get some granular CYA and put it in a sock hanging in front of a pool return so it can dissolve. You can then squeeze the sock periodically to help it dissolve.
 
What exact test kit are you using again? Add your test kit to your signature.
You'd be better off with the K-1766 (or equivalent) drop based salt test instead of a salt meter.
Use the drop based test for pH as well - not the meter.

5 days ago you reported CYA of 30. Today you reported CYA of 20 - and zero FC.
Don't add any CYA quite yet. First do an Overnight Chlorine Loss Test to rule out a nascent algae bloom.
Most likely, you're already settled in for the night so first thing in the morning, add 1/2 gallon of liquid chlorine to get FC to the 4-5 range. You will also need to add more chlorine later in the day as thesun will burn off the FC at a low CYA. You may need to add more chlorine in prep for the OCLT as well.

If you pass the OCLT, then bump up the CYA. If you don't pass thr OCLT, you will need to SLAM Process - and that will be easier at a CYA around 30.

You need to get your pH down into the 7's. But I think you need to redo theTA test first and be sure to take the TA test to its end point. Continue to add drops until the color doesn't change and then subtract the last drop. Report the result in multiples of 10. Once you have a new TA number, we can discuss the next steps to adjust pH and possible the TA as well. If you need to SLAM, you will need to lower the pH prior to starting.

Let's discuss the CH after we know a bit more about all of the above.