HDPE being inert materials, they get totally unaffected by most of the chemicals and even chemicals which affect the plastic materials, have been conveyed through these pipes for minimum 100 years without much damage to the piping system.

River water infiltration galleries are prepared to collect the clean water (free from slit, clay) from the river bed for use in city water supply, thermal power plants, coal mines, or any industrial application. In the design of infiltration gallery, the network of perforated/slotted HDPE pipes covered with geo textile/fabric are installed at the specific depth below river bed, above which layer of graded gravels are packed to stop silt, clay flowing in to perforated / slotted HDPE pipes. The water percolated through these graded gravels, gets filtered through geo textile/fabric and the clean filtered water enters in to perforated / slotted HDPE pipes through perforations or slots which is further conveyed to jack/intake wells using HDPE pipes.