Posted by A sewer lateral inspection examines a home’s sewer lateral for issues that could lead to plumbing problems, such as backups, flooding, or structural damage:
- Blockages
- Cracks
- Breaks
- Leaks
- Damage from roots or other environmental factors
- Cross bores
- Signs of deterioration
A sewer lateral inspection can help prevent: Foul-smelling pools of water around the property, Clogged pipes, and Foul smells inside the home.
The inspection can take a few minutes to half an hour, depending on the size of the sewer system and the issues found. The inspector will report any structural damage or health risks.
If the inspection finds issues, the inspector may provide a bid to repair or replace the sewer lateral.
SDR 35 is a standard dimension ratio (SDR) for PVC pipes that are commonly used in sewer and storm drainage systems:
- What is SDR?SDR is the ratio of a pipe’s outside diameter to its wall thickness. For example, SDR 35 means the outside diameter is 35 times the wall thickness.
- MaterialSDR 35 pipes are made of PVC, which is corrosion-resistant, lightweight, and easy to install.SDR 17 polyethylene plastic pipe is a commonly used material for sewer lateral systems because it’s suitable for gravity sewage applications and has an inside diameter similar to PVC and cast iron sewer pipes. SDR stands for Standard Dimension Ratio, which is a method for rating a pipe’s durability against pressure. Here are some characteristics of SDR 17 pipes:
- Wall thickness: SDR 17 pipes have a thinner wall than other pipes, which means they have a lower pressure rating and are better suited for lower pressure applications.
- Flexibility: SDR 17 pipes are more flexible than other pipes, making them easier to install.
- Cost: SDR 17 pipes are generally less expensive than SDR 11 pipes because they use less material.
- Longevity: SDR 17 pipes may not offer the same longevity as other pipes.
- Weight: SDR 17 pipes are lighter in weight per unit length than SDR 11 pipes.
- Landfill use: SDR 17 pipes are the most commonly used HDPE pipe in the landfill industry.
To calculate the wall thickness of SDR 17 pipe, divide the outside diameter of the pipe by the SDR. For example, if the outside diameter is 200 mm and the SDR is 17, the wall thickness is 11.7 mm. - Wall thickness: SDR 17 pipes have a thinner wall than other pipes, which means they have a lower pressure rating and are better suited for lower pressure applications.