Hi guys, I am currently having some problems with my tires. The thing is, one of my tire seems to have its pressure drops down really quickly. I pump all 4 tires at the same time, but it only takes few days for me to notice that the particular one tire seems kinds of deflated. When I go to the station to pump up the pressure, that tire was shown <50kPA. But anyway I was able to pump the pressure back up so I wasn't sure if it is punctured. The other 3 was fine though, so guys what actually is the problem?