In a one-inch rain, a 2000-square-foot house will produce approximately 1250 gallons of water. The controlled collection and discharge of rainwater run off is an important aspect in controlling foundation moisture problems, erosion, and ground saturation. It is important to have the proper sized gutters, downspouts, and functioning buried downspout pipes. Though the use of a splash block to receive water from a downspout is commonly used, it is not acceptable. Water released close to the house can contribute significantly to moisture and water problems around a foundation. Tischbein Co. Inc. solves the problem of failing buried downspout lines by installing new lines using Schedule 35 solvent weld PVC pipe or Schedule 40 solvent weld PVC sewer and drainpipe. We highly discourage the use of black single wall corrugated pipe for any downspout or surface water problems.