2. Corrugated Perforated PVC Pipe
A perforated pipe is designed to allow water to enter or exit through small holes or slots along the pipe. This pipe can make a great underground drainage system since it absorbs the water and drains it out of the way. It also the passage of heat that comes below the ground and travel to the outside of the building which is common use to the industrial facilities that requires temperature control such as cold storages.