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 design is intentional, as it allows for optimal drainage of water that may accumulate around the foundation. By placing the holes on the bottom, the pipe can effectively capture groundwater and any surface water that may infiltrate the soil, directing it away from the foundation and reducing the risk of water damage.

Aligning holes in this manner ensures that the drainage system functions properly by taking advantage of the natural flow of water, which tends to move downward due to gravity. The bottom placement prevents debris and sediment from easily clogging the holes, which is a common issue if the holes were positioned on the top or sides of the pipe. Other placements could hinder the effectiveness of drainage or lead to potential backing up of water, which could compromise the foundation's integrity.