Builders who are engaged in laying drainage networks are well aware and perfectly characterize Pragma pipes. Buying them is not a problem, but you should beware of fakes, since recently Pragma has been called any corrugated polypropylene pipe with a structured wall. Therefore, when buying, pay attention to the pipe socket, it must be weld-on cast with stiffeners. Also be sure to ask for a quality certificate and a certificate of conformity.
When at the end of the fifties the chemical industry developed a new improved type of polypropylene, no one could have thought that this modification would become indispensable for laying sewage drainage. Pragma double-layer pipes are ideal for laying networks of various diameters, they are very resistant and cannot be destroyed under the influence of the most aggressive environment. Their installation does not require heavy construction equipment, which means that installation costs are reduced and time is saved. Pragma pipes are also worth buying because their prices are much lower than other plastic sewer systems. This is due to the low cost due to the high specific gravity of raw materials and low overhead costs.
Concrete pipes are prone to silting, which contributes to the development of microorganisms. When using pragma pipes, such problems will not arise, since their surfaces are smooth and cannot even be abraded by abrasive materials. Another significant plus is that the pragma resists deformation, which allows them to be laid under the highway. With a strong load on the ground, the pragma elastically takes the shape of an ellipse, and then elastically takes on its original shape. Rigid pipes from loads begin to crack and fail over time.
In addition to clear technical advantages over other analogues and operational benefits, the pragma is light and easy to transport, not demanding during installation, suitable for telescoping and, when adjusting the length, it can be sawn with a simple hand saw. In general, any sewage system is indispensable without a pragma.