EASY ON THE O
I noticed, more than once, that the two o-ring seals on the sink mixer get a bit sticky if you tighten the neck nut too much. And if you keep it a little looser, it tends to leak, or becomes undone. The solution? Apply a few layers of polytetraflouroethylene (PTFE) tape over the seals. The seal is water-tight and the tape allows the neck to swivel freely without unnecessary tension.