undefined I have just fitted a corner sink however the walls are slightly out, I have secured it to the walls with both the wall brackets supplied and the holes in the actual sink itself. however these fixing points are at the edges of the sink and there is nothing in the middle, so now when you put pressure on the front of the sink the back lifts up and rocks in place??? there is now way to secure he back of the sink to the wall to prevent the rocking. the only way i can see to secure it is good old no more nails. unless there is another way and am just blind and stupid!!!!!!!