If your lawn looks like a swamp every time you get a heavy rain, you probably have drainage issues. Either the water isn’t flowing away from your house properly or your lawn is too flat to drain water effectively.  Any water that stands near your house is just looking for a way to enter your foundation, which can lead to serious problems.  Also, excessive moisture in a yard can interfere with recreational activities, limit landscaping options or make mowing and other maintenance tasks difficult.  One possible way to address a wet yard involves installing underground drain tiling that extends from problematic low spots in the landscape to an appropriate outlet such as a ditch or swale. Installing the drain tiles, or perforated piping, properly helps to ensure that the system will function efficiently for an extended period of time.