A pressure compensation member, an irrigation drip emitter, drip lines and methods relating to same, are provided for delivering irrigation water from a supply tube to an emitter outlet at a reduced and relatively constant flow rate. The pressure compensation member being suitable for use in conventional emitters or alternate emitters being provided having either a uniform elastomeric emitter body configuration or a poly-material emitter body utilizing an elastomeric pressure compensation member. Various methods are also disclosed herein relating to the pressure compensation member, emitters and/or drip line using such pressure compensating members and/or emitters.
