The other day I took my bike in to get a flat tire fixed. The air would always stay in there at 5.5bar for my usual 30 minutes ride, but after letting the bike sit in the garage over night, the pressure would be gone. I assumed the valve was broken, and I told the repair guy when I handed over the bike. He changed the tire, I paid for [...]JJS
"Focus. You can always do the other stuff later."