Weholite technology was used for the construction of a penstock (water transmission pipeline) for a new small hydro power plant in the city of Cieszyn.

A project to convey Sopot area stream waters further out in the Gdańsk Bay was initiated. It is yet another of the many environmentally friendly projects that have recently been carried out in Poland where PE pipes were used.

Storm water system for Special Economic Zone Wroclaw - Kobierzyce. Drainage of an area of 260 ha

The technological pipelines transporting the brine washed out during the construction of underground gas storage facility followed by its discharge into the Puck Bay.

The piping by Weholite of an open discharge channel carrying treated waste water from the “Dębogórze” Sewage Treatment Plant in Gdynia to the village of Kazimierz.

Thanks to swagelining technology, it was possible to carry out most of the water line modernisation works in the centre of the city of Łódź, in a built-up area, along traffic lanes with heavy traffic of motor vehicles and trams.

The construction of an innovative retention sewage canal in Rzeszów in southern Poland was recently completed using Weholite piping and manholes.

Renovation of 1.5-kilometer section of reinforced concrete sewer was carried out in 2013 in Chełm.

Nineteen kilometres of polyethylene pipes with diameters of 1000 mm and 1400 mm connected the southern area of Warsaw with "Południe" sewage treatment plant and the Vistula.

Since 2013 a battery of Weho tanks has helped to provide drinking water for the guests of the East European Congress and Sports Centre Arłamów in southeast Poland.

In 2007 in Szczecin, a series of record-breaking in the European scale number of crossings of a high dimension PEHD pipeline under a water obstacle made with a horizontal drilling method was completed in Szczecin.