How to install storm water inlets without concreting and deepen pipes into the ground?

Good afternoon, Alexander.

I strongly recommend to make a blind area. The dampness under the house has no positive effects on the floor or on the piles themselves. Do not forget that they are metallic and, like any metal, are subject to corrosion. If the house is frame, the floor, like the binding of piles, is made of wood. With high humidity, after 3-5 years without a blind area everything will rot.

I advise you to make the blind area independent of the cap. For clarity, Figure 1. Swelling of the soil leads to its micro movements. If the device is incorrect, the facade decoration will be damaged. In the case of visually independent micro movements will not even be noticeable.

Regarding the storm water inlet. Installation should be carried out according to technology. It is mandatory to carry out the preparation of the base (Figure 2). Which includes cementing the base.

All steps are as follows:

1. Digging trenches, foundation pit. Depth is calculated: receiver height + base.
2. Plastic bulkheads under the pipes are cut with a knife.
3. The bottom of the pit is rammed with sand, crushed stone is laid on top, again rammed and spilled.
4. The concrete is laid immediately and the storm water inlet is installed in the level.
5. Connect the pipes, the joints are sealed to prevent leaks.
6. The gap between the walls of the pit and the body is also poured with concrete. Before pouring, to prevent deformation, install the upper grill. To protect the grilles from concrete, cover with foil.

Installation of storm pipes is regulated by SNiP 2.04.03-85, which states: the minimum depth is determined by the experimental use of engineering networks in a particular region. It should be interpreted as the depth of soil freezing in your particular area. Figure 3, demonstrates the rotation of the pipe to the desired depth, immediately after the receiver. Moreover, it is accepted that the depth cannot be less than 70 cm. It is associated with the mechanical stress exerted on the pipes; damage is possible at a shallower depth.

I suppose they will be used with a diameter of 110 mm or 150 mm. Proper operation will ensure proper bias:

- for a pipe of 110 mm. 20 mm. 1 meter;
- for a pipe of 150 mm. 10 mm. on 1 meter.

At the junction of the pipe with the storm water inlet, it is recommended to make the largest slope. This simple method will allow faster water drainage. The downpipe should be directed to the center of the receiver. I note that without a storm roof system, storm water inlets will not solve the problem of precipitation removal.