I am looking for advise on how to pressurize black iron pipe for inspection. I have used the proper pipe dope and ran a length of 16ft with two ninety degree bends. It is for a propane direct vent stove. My question is should I just cap the end of the section to pressurize, and what kind of guage do I use and how much pressure should be applied? Sorry if these questions seem stupid.....maybe they are but I have never installed gas pipe before but like doing my own work and have trouble paying someone $75/hr if i can do it myself! Thanks for any info.