I have a couple of antennas with which I use coax to the shack. The coax has to cross my driveway and I want to run it through buried PVC. Is it best to use lateral lines or at least drill several drain holes in the PVC to prevent moisture buildup or is it better to try and keep the PVC dry? It will run about 15'. I am using "bury type" coax. Thanks. Rick/K5IAR