Gutter Downspout Drainage – Water Dispersal
Friday, June 4th, 2010Even if your gutters don’t get clogged, it’s possible for water to pool near your foundation and cause damage. Or, if you have a basement the rain water might leak into your home interior. These problems are most likely to happen if your downspouts aren’t configured properly. Diverting water away from your house is critical for proper downspout performance.
Splashblocks are one of the most common water dispersal devices. While they do keep water from digging a trough in the soil at the end of the downspout, they don’t do much to prevent pooling. An extension does a much better job of carrying water far from your foundation. There are several extender options:
Fixed – This is just a straight length of downspout that fits onto the end of the existing spout. It makes makes the spout longer so that the water ends up further from the house.
Flexible – This style can be bent or curved like a bendable straw. It is used to direct rainwater in the desired direction across the lawn – for example, into an area that drains easily into the storm sewers.
Jointed – An elbow style extender can be flipped up out of the way when not in use so you don’t have to mow around it.
Retractable – This sleeve style extender is attached to the end of the downspout and is pushed out by the force of the rainwater. A spring causes it to roll back up after the rain stops.
Collector – A rain barrel is the most frequently used rain collection system. However, it will easily overflow in a heavy downpour. A drainage system that pipes water into a cistern or other reservoir is required if you want to capture a significant amount of rainwater.

