The exposed Digital shower Exposed Digital showers dispense hot and cold blended water from the pipe contained within the shower's slider rail which is fitted on the surface of the wall. The clever ‘exposed' design of the shower means there's no need for installation to cause damage to your bathroom's décor or tiling. Providing there's easy access to space above the showering area (for instance, the loft), exposed Digital showers are extremely simple to install and fitting can be complete in as little as two hours. Exposed Digital showers are the most popular choice of Digital shower and can be the easiest for the plumber to install.