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1.) Creating the Trench
First, we jackhammer a channel opening around the perimeter of the basement or crawlspace floor. Next, we’ll remove all of the concrete and dirt from the trench. The trench should be 12 inches wide and 10 to 12 inches deep. We also ensure there is a pitch in the trench for appropriate drainage. A 1/8 inch pitch per foot is usually plenty for drainage.
2.) PVC Pipe Preparation
Sahara Waterproofing uses a 4-inch perforated PVC pipe for drainage. Before placing the PVC pipe in the trench, we’ll install a 4-inch mud and silt filter fabric over the perforated PVC pipe. This process ensures the pipe won’t clog up with mud and silt.
3.) Installing the PVC Pipe
At this point, we’ll install the perforated PVC pipe into the trench. We will also install 1 or 2 clean outs into the system depending on the linear footage. This keeps the perforated PVC pipe from clogging up.
4.) Using Stone
Once the PVC pipe has been installed, we will surround it with 3/4? clean crushed stone. The stone is used for drainage.
5.) Using Weep Holes to Allow for Drainage
Walls that are hollow core blocks will have weep holes drilled in the first course of the cinder block to untrap any water and dampness in the walls. This allows for drainage into the system.
6.) Mira Drain Panel Installation
To protect weep holes and drain water into french drain system, we use oval point Mira – Drain panels miradrain panels.
7.) Sump Pump Installation
At this point, we’re ready to install the perforated PVC pipe into a sump pump. The sump pump will discharge the water either into a storm drain or the outside of the house. Depending on the township regulations, we will discharge the water accordingly.
8.) Pouring the Cement
The final step of creating a french drain is cementing the trench with a Portland cement. We will ensure the cement will be level to the existing floor. Sahara Waterproofing’s written contract notes that the system should be cleaned at least once a year to prevent the system from clogging up with mud and silt.
Sahara Waterproofing is the expert in preventing water from entering home basements. Our solutions include a combination of drainage and sealers. Waterproofing is a must for below-ground construction, and essential in cases where groundwater is likely to build up in the soil and raise the water table. Contact Us in Philadelphia, Pennsylvania and Surrounding Areas (855) 726-6928 for thorough basement waterproofing services.
Our services examine exterior damp proofing, condensation & seepage, leaks & underground water, interior drain fields, and more. Our goal is to find a solution to any problem.