Wine Making

I'm starting my first real batch of wine today. I got two pounds of black table grapes from the store and mashed them up with a potato masher. I then added two cans of Welsch's grape juice concentrate with 6 cans of water. This yields about a 20 brix must. I crushed up a campden tablet at about 2:20 PM , added 2 drops of pectic enzyme, and a fifth of a yeast packet of RC 212. I'll see how if it starts to ferment.