Ready for something really different? We're a farm, and are hoping to put in a 16x25 greenhouse this coming spring. We had the use of an excavator because we had to rent it for another project, so we made a long (150ft) trench, 5' deep, and put in 500 feet of 1" PE-RT (because that's what was available while we had the machine, and because it seems closer to HDPE than PEX is). Went smoothly apart from one kink that I immediately straightened, at the end of the first evening when I was installing it. I was kicking myself, investigating different ways to cut that area out and fix it, but the next morning when I went to look at it, it had recovered to a point where I literally couldn't figure out exactly where that area was. Cool. Put the rest of the pipe in, routed it, great. We have compressed air. What do folks here use to seal the ends of the 1" pipe, in order to pressure test with the air? I'm sure I could rig something up, but no need to reinvent the wheel if there's a standard way of doing it already. Thanks in advance!