This often means that water from downspouts comes out directly onto these hardscapes. Water from downspouts is often diverted away from patio areas, but many builders do not pay as much attention when it comes to areas near driveways. They often have diverters to direct the water away from the foundation or into a nearby flowerbed. In most cases, particularly when it is not a custom-built house, the roof drainage system consists of gutters that lead to downspouts that release water near the foundation of the house. We also need to consider the gutter drainage system collecting water from the roof.
While most of us are aware that proper grading is essential, fewer of us realize that ground-level drainage is only part of the equation. Fasten the hose to the pipe, turn on the water and pressure wash out a hole under your concrete slab where you want the 4 inch pipe to pass.If you are planning on installing a slab concrete, stamped concrete or paving stone driveway or patio, drainage is an important consideration. On the other end of the pipe solder a fitting that can be threaded onto a garden hose. Another way I go under concrete is to dig a trench on one side of the slab, get a 1/2 inch copper pipe cut to the length of the hole, in your case about 5 feet, take a hack saw and cut one end of the pipe at a sharp angle and solder a brass nut (a number 10 nut should work) inside the pipe at the base of the angle. If I did this for approximately 20 feet, 5 feet should be a snap. There is a lot of sand in my soil so it was not really too difficult. It took me approximately and hour of driving to get 20 feet of the pipe through. I would pull the pipe out every foot and clean out the dirt. I dug a trench about 15 long and 3 feet deep and started the hole by twisting the pipe as I hammered on the outer end with a small sledge hammer. Using 4 inch by 10 foot ABS plastic sewer pipe with notches/teeth cut in the end, I drove approximately 20 feet under the slab of my small barn.
I am assuming that you want to go across the 5 foot side walk and not the length.
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