How Improve Garden Drainage, Backyard Drainage

April 28 2015

With the end of the cold season we start to think of any outdoor project. One of the jobs to be done outdoors, in the yard or in the garden, can be the improvement of the drainage of the garden.

Backyard Drainage

Garden Drainage

We all love our garden, our own little green world in the backyard, with flowers and plants, a place where we enjoy spending some of our free-time in absolute relax, maybe reading our preferred book or listening some favorite good music.
The simple maintenance that this little treasure requires, includes the need to keep the ground dry, avoiding stagnation of rain water and the formation of excessive moisture. These factors that can make the garden less enjoyable, in a the long run may also compromise the healthiness of the basement or other premises and underground rooms, like cellars and taverns.
So let’s see how to improve the drainage system in the garden or how to drain the courtyard.
In fact it is not unusual to ear people complaining about problems related to the existence of moisture and condensation in the basement or even more for the presence of water on the floor or walls that are wet to the touch and show the bloom of mold in the corners, all of these problems drive from one side to the unavailability and little access to the rooms, and on the other may even create irreversible damage to the entire structure of the building.
If the composition of the soil is predominantly clay and therefore with poor permeability, there is the strong possibility that any waters present in the subsoil tent to flow laterally toward the lower slope and, if the water goes towards the wall of the house, then we are really going to heading a big problem. A problem that can be solved with the drainage of the garden or the courtyard.

Garden Drainage

Drainage Of The Garden

In this case, you can still achieve a good result with a relative small effort if you proceed with the construction of a kind of drainage channel along the entire perimeter of the house to force the water in a desired direction avoiding its dispersion. Once properly channeled the water can be driven far away from the building and even brought out of your property’.
This technique is known as ‘French drainage’ or French drain.
Let’s see what it is.
French Drainage
As we said, this drainage system consists in building a kind of underground gutter that goes around the perimeter of the entire building.
The channel should have a width of about 4 to 5 inches and it should be placed at a depth approximately 12 to 20 inches.
Once the canal is built, we will cover it with special perforated tiles or with a galvanized net over which we will pour a quantity of clean gravel to a depth of 2-3 inches and finally covered everything with other soil up to the surface.
The water flows out of the ground and is filtered through the perforated tiles (or through the net) and ends up in the gutter where it is forced to follow the slight slope that we have given, to the destination that we have predetermined.
In essence we can say that this drainage system works as with a normal surface drainage system, it means a plastic duct with a cover grid. The difference only consists in placing it a foot underground. Alternatively you can use a PVC pipe with the top perforated with lots of holes in order to collect the water and channel it.

How Drain Garden
After having discussed about garden drainage, we feel we should recommend another useful advice, infact it should be better always check first that the rainwater from the roof, usually piped down, it is not dispersed close to the foundations of the perimeter wall of the house, creating additional sources of moisture and condensation. If is the case, you may follow the same system above mentioned to drive also this water far away from the house and from the garden.

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