Option No. 3. In recent years, the often used option.
This option of arranging drainage in appearance is excellent. Closer to the bottom of the trench, the pipe is laid and sprinkled on all sides by gravel, in all calculations this type of drainage trench will work at best for seven to ten years not whiter. Just as in the first version there will be a siltation of the working area, and then the pipe catfish. What prevents the water output of water. The most reliable and long -term way is the following option.
Option No. 4. The most difficult type of drainage.
At first, the sand of about 10 centimeters is poured at the bottom of the trench and is tamped. It will serve as a water filter and a pillow of the entire system. Then geots are laid, along the top of which gravel five to ten centimeters is filled up and a drainage pipe is laid in a special geotxed winding. Then a gravel is filled on top of the pipe that is turned into the same geothkani. Further, as well as from below, there is a layer of sand to cough centimeters and the drainage system is ready. The main advantage of this option is the presence of a double layer of sand that is a filter. The gravel itself is protected from the hit of small polluting particles by geothkani and the pipe itself is protected by it. These design features allow such an option not to lose their functions for a very long time, firms for the production of plastic pipes give a guarantee for more than fifty years, and the winding of gravel will extend the service life of the drainage of still fifteen.
If your site is swampy, then the minimum width of the trench thirty centimeters can be increased to fifty centimeters, with one meter high.
The slope is an integral part of the drainage system and very important. If you do it not qualitatively or not at all, then water will accumulate into the trench. According to the construction standards, one centimeter should be one meter of trenches. Now let’s calculate, with the length of the trench a hundred meters, which happens quite often, then based on the minimum value of seventy centimeters, the slope will be one meter seventy centimeters. Which is quite upholstered for any private trader. In order to save, it is enough to observe another ratio of one meter half a centimeter slope. With proper non -hasty work, the water will perfectly leave with such a bias. With this, you will be quite significantly saved on loose material and earthwork.
It is necessary to take into account the drainage system when developing individual house projects. This will maintain durability and reliable protection against groundwater.