Apparatus for drip irrigation

摘要

Drip irrigation apparatus comprising at least one foil element including at least one first surface having a raised pattern formed thereon and defining a portion of a pressure reducing pathway and at least one second surface joined to the at least one first surface and defining therewith the pressure reducing pathway, the at least one second surface being disposed in non-coextensive overlapping relationship with respect to the at least one first surface thereby leaving at least one water pathway between the interior and exterior of the pressure reducing pathway.