I fitted a single lever tap [1][2] along with a new sink unit about a year or so again and, while it (the tap) works well enough, it persistently works loose at the mount point. It doesn't take long to tighten up (I now even keep a screwdriver under the sink for the purpose), but this has now become an almost once-a-week task, which is a PITA, as well as being my fault. [3] Is there a straightforward way to resolve this, that will not prevent the tap being easily removed should the need arise?
[1] Not this, but similar:- posted
15 years ago