I made the pipe that goes from the tank to the gascolator today. As you can see from the pictures I had 2 goes at this before I got it right. I had to get used to the pipe bending tool. I then went to see a fellow RV builder to get those flares done at the ends of the pipe, he has the right equipment to get the correct 37 degree flare. Given there are only 2 flares to do in the entire project I did not bother buying an expensive flaring tool myself.