I'm in Orlando and we will probably get some heavy wind and rain but not a direct hit from Fay on Tues. I have a couple of prep questions. 1) I have put my cover on my TT to protect the roof. Good idea or not? There are no trees with in 75 ft but do have some palms and an oak next door. 2)What is the best way to fill up the fresh water tank and make it safe to drink (we never use it and it has 1/4 tank just for flushing). 3) Can I turn on my frig (auto position so the gas will come on if we lose power) with the cover still on. We won't be in it with the cover on obviously. 4) Got a 30a plug from CW with an open end section to attach a 4 prong twist connector that will connect to my 5500 briggs/stratton. The 4 prong connection says 120/240 30A AC. As I understand it, since the 30a plug and cable only have 3 wires, I may only be able to run the A/C or Frig but not both. Is this correct. thanks for any advice.