"There are several patches of periwinkle in my yard. They get overgrown by multiflora rose and Japanese honeysuckle which are too tedious to try and uproot. So I mounted a weed trimmer on wheels, string set at about 10" high, so I can periodically cut them down and leave the periwinkle underneath. I used 1/2" EMT and a Maker Pipe kit. The EMT and fittings are definitely sturdier than PVC which did not hold up under the weight of the engine. Thanks for the idea!" - Frank