I live on the islands in Savannah and we're heading out tonight because of Matthew so I will not be here to run the waste function on the pump as water levels rise. I am looking to drain the pool to prevent major overflow, but I'm fearful of causing a problem with it "popping". It is a vinyl liner. Been looking online to see how much I can drain before the structural issues become a threat, but so far no luck. Only thing I see is "call a professional", which is obviously not an option at this point. Does anyone know how much I can drain safely?