Firman generator T07573 How to drain gasoline 

firman generator T-07573. This is a simple video to explain how to add a fuel drain to the firman tri-fuel 9400w generator commonly sold at Costco. There is no drain from the factory so you need to install a quarter inch or 3/16 tee fitting along with some quarter inch hose and a valve to turn the drain on and off as needed. You can find quarter inch fuel valves on Amazon as well as the t fittings