Please see 3 pictures which show bathroom in ground floor extension:
//media.diynot.com/221000_220223_79996_79924382_thumb.jpg
//media.diynot.com/221000_220223_79997_88072644_thumb.jpg
//media.diynot.com/221000_220223_79998_87646293_thumb.jpg
1 Vertical hot and cold...