Drainage is a very important installation found outside the house and in the garden - it is a way to drain them. It is undoubtedly an effective solution to prevent excessive moisture in the house and basement flooding. For detached houses, a band drain is usually used. In the case of the garden, it prevents water from collecting in depressions in the ground, puddling, becoming soggy and muddying the garden. The basic element of any drain is the drainage pipes, which collect the water and then connect the backyard drain to the stormwater drainage pipe.

Types of drainage pipe

Drainage pipes are used for soil drainage and therefore prevent dampness
and flooding of cellars and muddying of gardens. The basic division of drainage pipes with their application is as follows:

• with holes - they are used to drain water from gutters if they are routed under the lawn, between the roots of plants in the garden or to draw water from the ground into reservoirs or sumps,
• without openings - they are used for draining water into reservoirs, manholes, rainwater drains.

Tubes with holes

Pipes with holes can have different numbers of holes per perforation, and there can also be drainage pipes with holes:

• without braiding,
• in the braid, which protects the pipe from silting.In addition, there are several types of braid - filters for drainage pipes:

• PP (polypropylene) braid,
• a geotextile filter (a geosynthetic made of PP fibres mechanically bonded),
• additionally made of coconut fibres.

Use of drainage pipes

The choice of braid in a drainage pipe depends on the type of soil - the permeability of the soil. PP braided pipes are used for clays and loams. Polypropylene is a strong material and is therefore not biodegradable. In addition, it effectively pulls water from the soil and prevents the pipe from silting up. For soils made up of lighter soils, a drainage pipe with a geotextile filter is the best solution. For lighter soils, unbraided drainage pipes can also be used. However, in this case we will have to cover the pipe with gravel, which acts as a natural filter - it protects against siltation and thus increases the effectiveness of the drainage.

Wrap the pipe yourself

But even so, the best solution for anyone who wants to save money and who has a penchant for DIY, for carrying out hand knitting, is to wrap the pipe themselves with polyester geotextile from a roll.

Fig.1. Cross-section through a domestic drainage system.

Diameters and dimensions of drainage pipes

The features of drainage pipes are noteworthy, due to their standardised dimensions. Therefore, the diameters make the individual components of the drainage systems compatible with each other. These dimensions mainly apply to manholes, stem pipes and horizontal pipes, but also to all kinds of fittingsThe following tables show the classification of drainage pipes according to size. The following tables show the breakdown of drainage pipes by size.

In order to select the right type of drainage pipes, we should take into account the type of soil we intend to drain. When laying the drainage, we should also not forget about the correct choice of pipe diameter - so that the individual components of the system are compatible with each other. The connection of horizontally laid pipes, as well as horizontal pipes with stem pipes and inspection chambers is made possible by fittings, couplings and elbows.