Lori and I calibrated the left fuel tank. With the plane in level flight attitude we added fuel one gallon at a time, recording the data point in the G3X for each gallon. Fuel was measured and weighed as it went in. Added 25 gallons in all watching for leaks the whole time. None found. The final 3 gallons did not cause any change in the fuel guage reading. After filling I switched the fuel selector from "off" to "left", the first time it has ever moved. Disconnected the fuel line at the fuel servo and turned on the fuel pump, also for the first time. Ran it until pure 100LL was coming out, about a half gallon of pinkish dirty fuel in all. Did a one minute fuel flow test, also collected unuseable fuel after running tank dry.
