Solution to my leaking water pump weep hole?

I have owned 2 ex cop Diplomats over the years. Both 318s. On the 2nd Dip, I had a water pump (fresh reman) start leaking after 200 miles, redo time. This time I paid the difference and got teh new one instead of another reman.
and the last 3.8 Caravan water pump I did> was a buddys, who happens to be a retired welding teacher.... we had to weld a nut on one to get it out once the water pump was pried off the remaining stub... we took turns welding nuts on the stub as we couldn't get penetration on the welds with my MIG.... I think I finally succeeded in getting enough grip on attaching a nut to the remaining bolt.... with the avn owner's background he was pizzed that I was able to get it and he wasnt.... It did help that we had it in my garage on a lift instead of in his driveway to replace that pump....