FIG. 1 is a perspective view taken from the top and terminal end of a sprinkler system showing my new design, the center being broken away to indicate indeterminate length;

FIG. 2 is a front perspective view of a first block, the rear being plain and unornamented;

FIG. 3 is a front perspective view of a middle block;

FIG. 4 is an elevational view taken from the hose connecting end of FIG. 2;

FIG. 5 is a bottom plan view of FIG. 2; and

FIG. 6 is a cross-sectional view taken on line 6--6 of FIG. 1.

The broken line representation of a hose, the ground and water spray in FIG. 1 is for purposes of illustration only.