Perforated and solid landscape drainage pipes serve different roles in a drainage system. A perforated pipe collects excess water from the surrounding soil, while a solid pipe carries water from one point to another without letting it enter along the way.
- Perforated pipe: Small openings along the pipe allow groundwater to flow inside. It is commonly used to collect water in soggy areas or from a drainage trench.
- Solid pipe: An unperforated pipe keeps water contained as it travels toward an appropriate discharge point, such as a drainage outlet or dry well.
A system may use both types: perforated pipe gathers water, and solid pipe conveys it away. Using perforated pipe for the entire route can allow water to seep out before it reaches the intended outlet. Conversely, solid pipe alone will not collect groundwater from the surrounding soil.
Pipe material and shape are separate considerations. Both perforated and solid pipes may be available in flexible corrugated or smoother-walled styles. The right choice depends on whether the section needs to collect water or transport it, as well as the drainage plan and site conditions.
Before choosing pipe, identify where water is accumulating and where it can be directed safely. Avoid routing drainage toward a neighboring property, building foundation, or walkway. If the discharge location or local drainage rules are unclear, check with a qualified drainage professional or local authority.
