Apparatus are described that may serve as guards that protect partially buried sprinkler heads from impact damage. These apparatus each include an inner frame, an outer frame, and several wall members. The outer frame encircles the inner frame, and the wall members occupy the space between the two frames. The inner frame, the outer frame, and the wall members combine to partition the space into a plurality of compartments. At the same time, a top of the inner frame is higher than a top of the outer frame, and the wall members define a ramp between the top of the outer frame and the top of the inner frame. The apparatus may serve to cause a wheel of a lawnmower that would normally impact the sprinkler head to harmlessly pass over the sprinkler head without damage.

A sprinkler includes a compartment that surrounds its riser portion in an offset or asymmetrical configuration. More specifically, the distance of the compartments walls from those of the riser vary (i.e., increase or decrease) at different locations surrounding the riser. Put another way, the riser is closer to one side of the compartment than other sides of the compartment. This non-concentric configuration allows larger components to fit inside the compartment than would otherwise fit if the riser was symmetrically surrounded by the compartment.

A support stake for irrigation risers. Disclosed is a support stake which is configured for setting into the ground and which has a bracket which immobilizes the irrigation riser. The support stake resists the rotation of the irrigation riser around the irrigation pipe to which the riser is attached. The irrigation riser typically has an impact sprinkler on it which delivers a force which causes the irrigation riser to rotate in one direction and not the other. This stake prevents that rotation by trapping the riser in the bracket, and by being anchored in the ground.

A sprinkler apparatus includes a sprinkler head, a riser which is in fluid communication with a fluid inlet and the sprinkler head, a base for supporting and maintaining the sprinkler head in an upright position when the base is in contact with the ground or other surface; and wherein, the riser extends substantially vertically from the base a distance at least twice the width of the base and the base is configured to allow the apparatus to be pulled over the ground.