Underground Secret: Unlocking the Mystery of Burying PEX Pipe
What To Know
- PEX pipe can be buried in most soil types, but it is important to avoid burying it in areas with sharp rocks or other objects that could puncture the pipe.
- If the ground slopes, it is important to ensure that the PEX pipe is buried at a consistent depth and that it does not create any low points where water can accumulate and freeze.
- Yes, PEX pipe can be buried in concrete if it is properly protected with a conduit or sleeve to prevent damage from the concrete.
PEX (cross-linked polyethylene) pipe has become a popular choice for plumbing due to its flexibility, durability, and affordability. However, one question that often arises is whether it is safe to bury PEX pipe in the ground. Let’s explore the ins and outs of this topic to determine if burying PEX pipe is a viable option.
Understanding PEX Pipe
PEX is a type of plastic pipe that is made from high-density polyethylene. It is cross-linked, which means that the polymer chains are connected to each other, creating a stronger and more flexible material. PEX pipe is resistant to corrosion, chemicals, and freezing, making it suitable for a wide range of applications.
Benefits of Burying PEX Pipe
There are several advantages to burying PEX pipe in the ground:
- Protection from the elements: Underground pipes are protected from sunlight, freezing temperatures, and physical damage, extending their lifespan.
- Improved aesthetics: Burying pipes underground eliminates unsightly plumbing fixtures and creates a cleaner, more aesthetically pleasing exterior.
- Reduced maintenance: Underground pipes require less maintenance compared to exposed pipes, as they are not subject to wear and tear from weather or accidental damage.
Considerations for Burying PEX Pipe
While burying PEX pipe offers benefits, there are certain factors to consider:
- Depth of burial: PEX pipe should be buried at a minimum depth of 18 inches to protect it from freezing and physical damage.
- Type of soil: PEX pipe can be buried in most soil types, but it is important to avoid burying it in areas with sharp rocks or other objects that could puncture the pipe.
- Slope: If the ground slopes, it is important to ensure that the PEX pipe is buried at a consistent depth and that it does not create any low points where water can accumulate and freeze.
- Backfill material: The trench where the PEX pipe is buried should be backfilled with soil that is free of rocks and debris.
Installation Guidelines
To properly bury PEX pipe in the ground, follow these guidelines:
- Excavate the trench: Dig a trench that is at least 18 inches deep and wide enough to accommodate the PEX pipe and any protective measures such as conduit.
- Prepare the pipe: If desired, wrap the PEX pipe in a protective conduit or sleeve to provide additional protection from rocks or other sharp objects.
- Lay the pipe: Place the PEX pipe in the trench and ensure that it is level and free of any bends or kinks.
- Backfill the trench: Fill the trench with soil, compacting it around the pipe to prevent settling.
- Mark the location: Mark the location of the buried pipe with a stake or marker for future reference.
Safety Precautions
When burying PEX pipe, it is essential to follow these safety precautions:
- Call 811 before digging: Contact your local utility company to have underground utilities marked before excavating to avoid damaging existing lines.
- Wear protective gear: Wear gloves, safety glasses, and appropriate clothing when working with PEX pipe and excavating.
- Test the pipe: Before burying the PEX pipe, pressure test it to ensure that it is leak-free.
- Use caution with sharp objects: Be careful when handling sharp objects around the PEX pipe to avoid puncturing it.
The Bottom Line
Burying PEX pipe in the ground can be a viable option when done properly. By understanding the benefits, considerations, and installation guidelines, you can ensure that your underground PEX pipe is safe, durable, and protected from the elements.
Answers to Your Most Common Questions
Can you bury PEX pipe in concrete?
Yes, PEX pipe can be buried in concrete if it is properly protected with a conduit or sleeve to prevent damage from the concrete.
How long does buried PEX pipe last?
With proper installation and maintenance, buried PEX pipe can last for 50 years or more.
Do you need to insulate buried PEX pipe?
Insulating buried PEX pipe is not typically necessary, as the ground provides sufficient insulation. However, if the pipe is buried in an area with extreme cold temperatures, insulation may be beneficial.
