I know this is not a boat issue, but thought someone that does fiberglass repair might help, or know someone. Seems like momma squirrel decided to build a nest under the barrier of my 5th wheel rv. Momma chewed a softball size hole in my grey water holding tank..... emoBang. Long story short, I bought a kit and tried to repair it myself.....3x. I just hate putting out approx$300, if someone can patch this one.