Drainage Pipe Under Concrete Slab

Attach a cutter head onto the end of an electric drain snake.

Drainage pipe under concrete slab.

Before beginning the repairs on a section of pipe beneath a concrete slab consideration should be given to re piping rather than using a temporary fix. But before you can even pour the slab the building inspector must first approve and sign off on the drain waste vent or dwv system. Otherwise the ensuing leak could cause damage. Trenchless drain repair under your slab costs about a 150 per linear foot and takes about two days to do as opposed to two weeks for excavation for drain repair under the slab.

The most common type of pipe used for water lines under slab foundations is copper. The fitting will depend upon the kind of pipe you are installing. Typically if you were to excavate your floors to do the drain repair under your slab you should expect to pay about 450 per linear foot. Under slab plumbing diagrams.

When a drain pipe breaks under a slab the pipe must be located and repaired. Collapsed drain pipes under a concrete slab aren t the end of the world. The concrete slab covers the sewer drain pipes located under the slab. These plumbing sewer pipes should be checked anytime there had been significant foundation movement or foundation repair.

Install the appropriate pipe fitting to allow for the pipe to turn up and stub out of your slab. Place the cutter head into the sewer pipe and turn on the drain snake s motor. Don t ignore this because water leakage under a concrete foundation can cause additional problems. Unfortunately as copper pipes age they are prone to wearing thin and springing leaks.

How strong is the new inner pipe. Once the concrete is in place the. Pvc pipes require pre cast pvc angle fittings. Feed the spinning cutter head all the way through the pipe to cut away any roots.

Insert a video inspection tool into the sewer pipe and look for evidence of tree roots growing inside the pipe. Plumbing systems in concrete slabs go in before the concrete is poured as they are installed beneath the slab. Building and plumbing a house takes skill perseverance precision and aptitude. Before the concrete trucks come the contractor fills in the area over the network of plumbing pipes and drain lines with compacted sand.

Below are a some under slab plumbing diagrams that are relatively common. Pvc adhesive and metal pipes require pre cast metal fittings and must be bolted in place.