I've done shorter runs under train tracks with a shop vac. Hook shop vac to one end and slowly work the other end of the pipe through, empty shop vac, repeat. Worked really well with sandy soil and no rocks bigger than the pvc. I sharpened the end of the pipe to help cut roots, not sure if it helped.So I bought an old farm house the driveway runs alongside the house and the sidewalk between the two is the low spot and water gets trapped. I need to run a drain line under the driveway and I dont want tig up really nice asphalt. Anybody ever used a water jet hose attachment with PVC pipe and pushed it under anything? Boring company wants to pay for his kids college on a 20' long 2" piece of pvc.