concretedonuts...
Installation of a concrete donut. Prevent damage to your in-ground sprinkler heads by installing Concrete Donuts. These concrete donuts are dyed green and become a quick buddy with your grass. The concrete donuts are rated for 3000psi and are tapered from the top to the bottom so that the weight of a vehicle or large mower is displaced. The concrete donut will absorb the weighted pressure and not the sprinkler head. This is a time saver.