I've been trapping pocket gophers in my 2.5 acre yard for 20+ years. When I put I'm my sprinkler system they enjoyed the fresh dug dirt, pocket gophers also like to chew through power lines, my neighbor and I have both had to replace major power lines due to this. They also like to chew through pvc lines, again, we've had to replace sprinkler and water lines to the house.
Male pocket gophers like to make lots of mounds, female pocket gophers tend to make bigger mounds in a smaller area. There have been times when I have dug up entire runs 20'-30' on a side...that's 1 pocket gopher! At that point all 4 corners of the runs went vertical so I had to set traps.
I use pincer traps 99.9% of the time, if I do have to use poison pellets I will take a 4'x4' sheet of plywood and put it over the hole to protect wildlife as much as I can.
For awhile this last summer 3 of my 4 cats started using pocket gopher mounds as potties, that kept them under control as well.
There is no way to completely get rid of them, I've tried. The Rodenator would probably be the easiest way to go other than traps, unless you have time to sit in a golf cart with a shotgun. If you're gonna try shooting them, they make .22 rodent rounds, it's like a shotgun round for a .22.