Irrigation Popup Extension Base and Riser

Useful to raise height of sprinkler popup when grass is tall and blocks sprinklers from reaching all the grass in its area. Reverse engineered a commercial product because I couldn't find enough at the store and it was simple to model. I don't encourage avoiding commercial products like this but if grass is dying before you can find them at the store then this will help in the short term. The commercial device is patented but I modified the surface to avoid what I believe is the scope of the patent - it requires an upper cover over the interior voids. This one leaves the voids open - so soil will fill that area. You won't enjoy that feature (if you care) unless you modify the model (and I don't recommend infringing their patents even for personal use).