Core drilled my curb like a champ.Much nicer than a flakey patch.Way cheaper, faster, less headaches than hiring a guy with a rig, it only took about 30min & now I have a huge drill = Happy camper.The hose was useless though.. got a plastic adapter at the depot and zip tied it to help with the presure. I recomend adding a valve to the business end of your hose so you can manage the flow with-in reach of the drill.Good luck!
Mr. Joshua 
