Started to flood last weekend. Found 1" puncture in liner today, under about 4" of ice depth. Opening large enough to get hand in but Awkward. Tried to apply patch but wouldn't stick. Any advise? Thinking of widening area with boiling water to work vs. continuing flood and hoping for it to freeze. It's about -15 to -20 degrees already so freezes fast and won't be above freezing again until spring.