I installed a BVM UAT on thurs in my new Hotspot. I filled it up and wet tested my plumbing system and primed the lines.Today I went out to test fly the jet. There were zero air bubbles in the UAT, just fuel and fly. I believe filling up the UAT and letting the fuel sit in there saturates the bladder eliminating the bubble purging routine.I have done this several times and have never seen any air during my first run up.
V..
BTW the jet flys great...