I hope that there will be an inspection end of this week so I removed all clecos and lift off top skin. Clean up inside of wing. Installed equippment for pressuretest of fueltank, air-pressure regulator and a manometer, than blocked ventilator tube. I filled 1 litre gasoline that cover drainvalve and fuelline outlet. Increased pressure to 0,1 bar, and check for fuel-leak in lower part. Sprayed soap water over fuel-level indicator and return connector. No leak, OK. Tank is balloning so I won´t use higher pressure. The ventilator design will not allow any over/under pressure anyway.
