Simon
I believe the original yarddrawings are the to be followed. It seems to me there is a change in the lay out design at a certain time. The superstructure changed all the times why should`t the interior be refined based on experience as well. It still puzzles me the we have got the type, make and capacity of the purifier, but we haven`t seen the trace of it in any of the drawings available. I am sure we shall find out sooner or later as before.
Tore