Local hardware store has a 2000 gallon water storage tank with a forklift injury; fork stuck through the side. All we can find says the material is "poly". Poly what, I don't know.
Before I make an offer, I'm looking at the likely hood of repairing it. I know I could patch it with a couple of pieces of metal, an old inner tube and some bolts. I prefer a little better looking repair. More on the line of restore.
Suggestions on repair? Keep in mind it will hold potable water for household use.