Which type of piping is often used under hardscapes for irrigation purposes?

The use of sleeves under hardscapes for irrigation purposes is ideal because they provide a protective conduit for other pipes or wires that may need to be run underneath the hard surface. Sleeves allow for easy maintenance and replacement of these components without the need to tear up the hardscape. They are typically made from durable materials that can withstand the load of the hard surfaces above and provide a smooth passage that minimizes friction and potential clogging.

While options like flexible pipe and rigid pipe are commonly used in irrigation systems, they are not specifically designed for placement under hardscapes. Flexible pipe is often used for its adaptability in various installations, whereas rigid pipe may be preferred for longer runs or in more permanent setups. Coiled pipe is beneficial for certain types of applications but does not serve the specific function of providing a protective sleeve in hardscaped areas. Therefore, sleeves are the most suitable choice for ensuring efficient irrigation and ease of access to the underlying infrastructure.