[Winegrower]

The Headhunter Mach5 outlet fitting cracked which required breaking open the 3/4 brass union above it.  After replacing the cracked female to male part on the Headhunter the brass union would not seat and leaked.  There being no replacement near our location I went to NAPA and picked up some valve grinding compound. I used a small vice to hold the lower half and a cordless drill motor with duck tape over the chuck to grab the upper half.  With a small amount of lapping compound between the parts I was soon able to get the two parts well mated.  On reassembly no leaks with less torque on the mating ring as well.