Catastrophic Failure

Today I was going to pour the first of the concrete counter tops, the small one to the right of the pantry. I bought a sheet of Melamine coated particle board and made the form. I bent up and tied the rebar, fileted the corners of the mold with silicone and leveled up the form. Everything is good. I dumped two bags of Quikrete counter top mix in the mixer and carefully measured the pigment to achieve the forest green color that I wanted. I wrapped a trash bag around the opening of the mixer and led the dry ingredients mix. After 3 or 4 minutes I added a few gallons of water and left the mixer running. As I was working in the shop. I noticed that I didn't hear the mixer running. Hmmmm.......sometimes the pulley loosens up and I have to tighten the set screw, so I grabbed an Allen wrench and went outside to fix it. I didn't need the Allen wrench. The yoke casting broke off next to the pivot and dumped the entire load onto the ground. Bummer!!! The mix was a total loss as it was contaminated with dirt, leaves and weeds. Tomorrow I will have to try to repair it. I don't want to buy another mixer. I don't want to rent one, either. I have never welded cast iron, but I have brazed it, so that is going to be the plan of attack. Stay tuned.