...About those "imaginary" compressor explosions....

Small propane tanks (20 and 30 lb BBQ and RV) are DOT tanks and need to be certified every 10 years (recertification is 5 years). Other tanks like the propane tank at your house (the big ones) are ASTM tanks and do not need to be recertified.

My air compressor tank is 40 plus years old and does not leak. As I stated earlier, make sure the safety pop off valve is checked. That keeps the tank from exploding if the pressure switch fails. That and keeping the water drained should keep you safe.