Inflating Tires

My tire air hose has gotten a lot of exercise lately. It hooks into the the air supply line & I push in the trailer parking brake knob to make it work. 

   Many of the trailers I have picked up lately have had tire air pressures significantly below our desired 100 psi. It takes me about 15 minutes to get them inflated properly. The fuel savings I see make my time & effort very worthwhile. 

   Please pardon my poor photography.