Spent some time determining what this issue was and then sending email to Glasair for solution on the aux tank channels. They again solved the problem with out any hesitation. I had to pause on the build for a few days waiting for parts to come in. I also Spent a considerable amount of time trying to solve the VENT LINE Riddle. Geez people...how many ways are there to solve this? I read almost all the options in the GA Forum but many are retrofits to existing vent line issues. I read the SB68 but that was little help as I already knew to drill a small hole in the vent line. After a lot of research and head scratching I decided to go with the TWTT solution. I also spent time trying to figure out what wiring I'll need and also if I should run a conduit for wiring. I'm still not there yet but I have some ideas.....back to building!