There has been a bit of head scratching going on with regards to the plumbing but like everything else, once you find out how to do it you realise how straight forward it is. Bamboozled by fitting sizes and pipe sizes, metric and imperial, inside and outside diameters, copper or plastic, my poor brain was mush from it all. Today I think I finally got to the bottom of the plumbing mysteries. The kitchen ceiling has had a complete first coast now and all that is left is to build up the join between the rooms where the wall was, fill a big hole or two and bobs your uncle.