got fridge compressor on a tank. The last 3 days, i hear noises, like I would be listening to drops of water. Those ''drops'' are faster then yesterday. Today it's like 2''drops'' per second. Anybody have a clue what could be wrong? I am planning to buy big compressor, but I wonted to do that like in 2 months maybe... edit: this is when air tank is full or got some air and compressor is not running.