Oh DUH! you would think as a former Mod here I would know how to attach a file!
Here is my spreadsheet. you may feel free to use it, or change it to your specifications.
I have the thing set with conditional formatting, so any chemical adjustments that need to be made would be obvious. I never did get that pool, so you will notice that some of the parts (values etc) are not quite right. This was for Vinyl using bleach, or eventually an SWG.
You will need Olive Oil font installed on your computer to be able to read this.
If you have any questions, let me know!