It appears that water has found its way into the join on my laminated kitchen worktop. When I fitted it about 6 months ago the joint was flush, now there is a slightly raised portion about 2" long and the raised part has faint bumps along its length where I can only imagine it has swollen unevenly. What I intend doing is this. I am going to make sure that all moisture has dried from under the area. I am then going to put a ring of putty/blu-tac etc on the surface around the raised area. I will then fill this with a thinned pool of PVA glue. I will leave this for a few hours in the hope that it will be drawn into the swollen chipboard. After this I will clean the surface and clamp the edges flush for a few days. Hopefully the swollen chipboard will be recompressed and held by the glue. Anyone any comments on this and is it likely to work?