dishwasher leaking down inside of door from detergent latch

The part arrived sooner than I was ready to install! But it only took about 30 mins.(could take less but I like to do extra) I used a cordless drill with a star bit to remove the 7 screws holding on the inside plastic door cover. I unplugged the four electrical plugs so I could take the cover off completely. Once removing the cover I placed the cover on the kitchen counter to work on. I removed the liquid softner dispenser by turning tthe big threaded white plastic gromet on the front side of cover. I checked the big o ring for wear. Before reinstalling the liquid dispenser I placed a bead on 3-M black gasket silicon around the base and placed the o-ring on top of it just to make sure that it won't leak either. (this is installed last) There was quite a bit of the calcium build all over the parts. I cleaned this up with some CLR and a toothbrush, you don't have too but I'm a little picky and do not want to open it up again.
There are 2 little hex head screws holding the latch and associated hardware in place removing them was no problem. remove the old rubber gromet and put the new one on. Make sure the area where the gromet seats is smooth and clean. Now put it all back together and you should have no leaks