A method for producing a detachable portable plastic pipe assembly comprises a molded coupling fused to pipes with a gasket inserted in between the pipes to form a seal. A spline is inserted into an aperture formed by the molded coupling to create a lock. The spline is mechanically attached or fused to the coupling. The assembly is attached to a water source for water transport. The gasket for forming a seal comprises an inside lip, an outside lip, and a nipple. The inside lip is composed of a softer material than the outside lip, and extends slightly beyond the length of the outside lip.