Cash Flow Model, chemical vs. tubing replacement

[jackosieves]

I'm trying to generate an Excel cash flow model to determine whether or not to use chemical to help slow down the corrosion of my tubing. I was hoping to be able to run a series of scenarios, i.e. continuous injection, batch treating monthly, bi-monthly, quarterly, etc. along with different times to tubing failure. I was just wondering if anybody would be willing to share their Excel model with me?