How are the holes in rigid foundation drain pipe typically aligned?

The holes in rigid foundation drain pipe are typically aligned on the bottom half of the pipe. This configuration allows for the most effective drainage by facilitating the collection and removal of water that may accumulate near the foundation. When the holes are positioned on the bottom, they are strategically located to collect water that seeps down through the soil, which helps protect the foundation from excess moisture and potential drainage issues.

This alignment ensures that the water entering the pipe flows downward and is directed away from the foundation, thus preventing hydrostatic pressure from building up against the foundation walls. Proper alignment of the drain pipe holes is crucial for maintaining the integrity of the structure and minimizing the risk of water intrusion or damage to the foundation. In contrast, positioning the holes on the top half would not effectively capture the water drainage that is typically below ground level, while aligning them toward or away from the foundation does not focus on the most effective point of water collection.