Foes anyone have any experience trying to hammer a piece of capped
galvanized pipe under a concrete driveway? I'm wondering how far
this will work. I'd like to extend my sprinkler system to the area
on the other side of my driveway. Probably a 3/4 inch pipe will do.
Try connecting a water hose to one end, and open the other. Let the water do
the work. Be sure to arrange for the spilled water to come back out the
hole with the dredgings, else you undermine in areas you don't want.
Remember that you might get a sprinkler installation man to do this one task
for you. Also, cable installers do this all the time. These two
industries have a special machine that would do this job in 15-20 minutes.
If you find a small (as in one man) company, they might to it for a very
small fee, especially if they frequently come to your neighborhood for other
Try to see who does sprinkers/ or cable installations in your
neighborhood. Many cable companies use independent contractors to install
cable tv wires, and I get the impression most of them are one man ventures.
Hope this helps.
The water pressure idea is also good, and is good advice if you wish to try
it yourself. It is a common method.
The hardware store should have a "blaster nozzle" you glue to PVC
pipe and connect a hose to the other end of the pipe with the
included hose fitting. It's made for this job. Get a length of
20' PVC to do the whole job without couplers which can cause
My experience has been driving 1 1/4" pipe vertically but the problem was
always the joints - which you might not need. But if you do, they make
special drive couplings for the bigger pipe - if they make them for small
pipe I would recommend using them. And keep turning the pipe in a tightening
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