I went in to fit a small wall hung basin today and had a devil of a job trying to keep it tight to the wall along the top edge. I’ve done a couple of wall hung basins before but never had one where the fixing points were right at the bottom. It was supplied with 2 wall anchors which I installed but even tightened the top edge was pulling away and the adhesive wasn’t strong enough to keep it in place. I was worried that tightening any further would crack the ceramic. Is this a common design? And if it is how to you deal with it? It seems baffling to me that anyone would design a sink this way.