Abstract: A method of splicing together the ends of two lengths of drip irrigation tape is disclosed in which a tubular insert having an inner layer of high melting point material and an outer layer of bonding material is placed into the end of a first length of drip irrigation tape so that a portion of the insert projects outwardly from the end of the tape. The end of a second length of drip irrigation tape is then placed over the projecting end of the tubular insert so that the two tape ends are butted up against one another or close to one another. Both lengths of tape are then sealed to the outer bonding layer of the insert.

Abstract: An irrigation spray device has a substantially cylindrical peg for insertion into a water supply tube. A longitudinal water supply groove extends along the peg, with a water deflecting plate at one end of the groove for deflecting water traveling downwardly along the groove into an outwardly directed spray. The water deflecting plate has a smooth, convex curved or part-conical shape for forming a smooth, continuous, cone-shaped spray. The supply groove may be U-shaped for improved uniformity.

Abstract: Indicia are formed on the outside surface of drip irrigation tape by deforming the strip of flexible material when it is in a semi-molten state and cooling the strip while it is deformed. The indicia may include alphanumeric characters, logos or symbols that convey information. Indicia forming features in the surface of a shaping drum mold the strip of semi-molten material as the semi-molten material cures to form a flexible strip. The flexible strip is folded and sealed to form the drip irrigation tape.