On 8/11/19 at approximately 14:20, the Farmers Branch Fire Department was dispatched to a fire in an open parking garage located at 9 Medical Pkwy.  Engine E131 arrived on scene to find a small fire on level 2 of the parking garage with automatic sprinkler activation.   One sprinkler head activated.  Fire was contained to gasoline powered pressure washer and gasoline can for car washing operation. Engine 131 used a nearby dry chemical fire extinguisher to extinguish the remaining gasoline fire. Engine 131 closed down the sprinkler system and drained it.  Loss is estimated at $300.  No damage to the structure or vehicles inside the garage.