Poor drainage in your yard often causes severe erosion and makes it difficult to establish a healthy lawn. Drainage problems are often caused when construction work disrupts the natural drainage pattern and can flood an entire yard each time it rains. A simple pebble drain, called a French drain, collects storm water and diverts it to a low point in your yard, public storm water drain or a small retention pond. French drains can be installed without drainage pipe, but perforated pipe is the ...