Before installing a "Shower Pan Liner", it is important to create a pre-slope under the liner. This section shows the whole process from start to finish including the CBU on the walls and the mortar curb. I'd like to thank John Bridge for his method of building the "curb".
I use this system ONLY for basement showers where configuration for a new Kerdi drain just isn't practical. MUST be done right otherwise the pan will fail.
How to build a brick and mortar bench in your shower
Illustrated step-by-step instructions for building mortar bed walls. See why properly constructed "mud-walls" are the still the BEST method to create a flat and plumb surface for ceramic tile.
John Bridge has put together a very detailed illustration describing the proper procedures for constructing a Mortar Bed Shower Floor which also includes the installation of the liner and floor drain.