We have had a new pedestal bathroom sink installed and there appear to be two problems that i would like some advice about. The first is that when the taps are turned on, the water sometimes flows onto the surface that the taps come out from. Does this mean the taps are the wrong size for the the sink (too short.) Secondly, whilst the level across the sink is horizontal, it does not appear to be level from front to back and slopes backwards towards the wall. Consequently any water spilled onto the flat surface at the back of the sink sits there for days!!! Is this right?