Jonathan Ireland
Chris... if there is space under the shower tray for the removal of the waste trap and associated pipework, ie: if there is kicker and the tray has legs, this is a straightforward job. If the tray is low profile with no kicker, it can be more complicated. Access can be made from below the shower tray from the ceiling space, if the tray is on the ground floor and access is limited, the whole installation has to be removed J Ireland Plumber