Hi I'm lam6884, and I'm a yetiholic. Now that I've admitted my weakness, I have decided that one of my 65 quart yetis needs to become my next coolidor. I've already maxed out a couple of humidors and a 20Q yeti so it's time to give myself some room to grow. My question is if the seal of a cooler like this is too much. I have a small PC fan to put inside to keep air flowing but do I need to slightly open the drain plug go allow fresh are in?