I am just getting back into the hobby, and purchased a gallon of 10% nitro (plastic bottle and cap). I bought some fuel cap fittings. Once installed, will the cap fittings, lines, and pump create an airtight loop (and thus inhibit moisture buildup), or should I remove the cap with the fittings and seal the bottle when I am finished flying for the day? If the bottle should be sealed, what is the best way to do this, if I have poked holes in my only cap?