Drainage Systems
In today's environment of high density living, the ability to make water flow is crucial. A landscaper must not only think about accepting water from adjacent neighbors but it's effect on others at lower elevations. Although not always feasible an ideal landscape captures all water and channels it in turf to the curb to be collected in storm drains. Too often water is channeled through backyards from one house to another compounding the problem for those downstream.
French Drain Systems
Typical Use: French drains are used areas that tend to stay continually wet.
How does it work: A trench is made at the bottom of the swell that tends to stay wet. A small amount of rock is added to the bottom of the trench and a sleeved slotted pipe is installed. Rock is than added to a few inches of the surface. A small amount of dirt is than added to grow grass.
Limitations: This system accepts water slowly and will not help with storm water.
Storm Water Collection Systems
Typical Use: Usually installed to handle water from adjacent properties, water off impervious surfaces, or water collected in catch basins.
How does it work: Water is collected from catch basins and gutters and piped under ground. The advantage to this system is that water can be carried away when an ideal grade at the surface has not been established. Also water can be moved without the risk of erosion.
Limitations: This system is only as good as it's collection systems. Catch Basins must be placed in the right locations for this system to work. Drains must be continually monitored for debris.
Foundation Drains
Foundation drains are required on every home today. A foundation drain is a french drain system that is installed next to your foundation in order to keep this area dry. A tail line is installed off of the system and can generally be found at the lowest corner of your foundation. This line carries the water away from your house. It generally extends about 10-15 feet away from your home and daylights to the surface. It is important to always keep this line open and free from debris in order to keep your crawl space dry. The lines are often cut and not repaired with the installation of irrigation systems, telephone and cable TV service lines, or pet containment systems. If damaged they may be the cause of continual wet areas within the yard. |