It is customary in irrigation systems to use a series of sprinklers arranged for instance adjacent to a row of trees and to couple these by means of a hose or a flexible tube, hereafter referred to as a tube, to a source of supply and to periodically energise the sprinklers by feeding liquid such as water, or water with fertilizer or other chemicals added thereto. Such an assembly requires in-line junctions.
In devices of this type it is necessary to position a sprinkler at each locality where watering is to occur and generally the method of supplying the water or other liquid to the sprinkler is somewhat intricate because of the large number of sprinklers that need to be connected, and the problem of fitting the feed tube to the sprinklers.
Such sprinklers may be positioned at spaced intervals along the main tube, or can be fed by laterals joined to the main tube, and it will be known that it is difficult to effectively join laterals to a main tube where the main tube is of considerable length and where it is not possible to thread the tube through or over the tube junction.