Problem with set-screw on grey water valve
I literally had to rebuild my drain plumbing system some time back as it was installed poorly at the factory. I have the "cable operated" grey and black water valves. After installing new valves I made sure that the cables were lined up well and were the proper length. The original ones were actually in a complete loop under the unit and enclosed with the under-belly sheet metal to boot. The black water valve has been so much better but the grey water valve has a problem with the set screw coming loose which allows the cable to come out again. I have changed the set screw for a new one with little teeth on the end, used a dab of lock-tite, and tightened, backed off, and re-tightened. Just this weekend we went camping and when I went to pulled the valve handle out---there was no resistance and no flow. The valve handle for the grey water just moves freely in and out. So, it's back under the unit again. Any suggestions as to how to make this set screw hold on better?