I installed a compression shut off valve for a toilet supply line for the first time. I had plenty of pipe, so I cut off the old soldered valves and then used Emory cloth and a deburring tool to prep the pipe. I didn’t expect the hard part to be putting the nut on the pipe. I had a hell of a time, but I finally got it on and tight with no leaks. But, I ultimately have nine valves to install and would like to know if there’s an easier way. Maybe some kind of lubricant that won’t compromise...