Is there a way for an automatic watering system to go under the sidewalk.?

I have installed the Mr. Landscape system, but I would like to upgrade to a better system that actually reads the moisture and only turns on when the soil is dry. I would like to be able to water everything, including the flowers in the parkway.

Is there a way for an automatic watering system to go under the sidewalk.?
Buy a iron pipe thread by hose thread pvc adapter (available at big box hardware stores). Connect a water hose to the hose thread side and a pvc male adapter to the pipe thread side. Dig a trench one foot longer than the width of the sidewalk on one side of the sidewalk, and a 2x2 foot hole on the other side of the sidewalk opposite your trench. Using a schedule 40 piece of pipe 6" longer than the sidewalk is wide, cut the end to "wash" under the sidewalk at a 45 degree angle.Connect to the male adapter to the non-45 degree angle end of the pipe(do NOT glue). Turn on hose and "wash" under walkway, twisting the pipe constantly as you push/force it under the walk. Twisting the pipe while you push will help ensure that the pipe does not get stuck. Also try to stay as level as you can so that the pipe does not dive deep.
Reply:Hi,and yes you can run it under the walkway, using a Digging Bar. It's not to hard to dig through, I think the walk is only three inches thick. Bye
Reply:You can try using a length of PVC conduit and gently tapping it under the pavement.
Reply:You'll have to do a little digging, but you can run a PVC pipe under the sidewalk, and run the sprinkler line through that.
Reply:Yes, there are tools you can rent that will run a hole under your sidewalk or even as long as the width of the driveway if need be.