It is essential to use the exclusive Fundo drain unit, supplied with the rest of the system, whether the installation is in a wooden or a concrete floor. It must be solidly embedded, secure and restrained.

The drain unit is specially designed to connect with all styles of Fundo base and fit in shallow underfloor spaces. The use of any other drain is not possible.

Throughout the installation, cement-based flexible tile adhesive must be used. Pre-mixed ('tub') tile adhesive must NOT be used. It is advised that wall construction and tiling is completed before installing the Fundo.

Appropriate drying times must be allowed before tiling and subsequent grouting.

It is important that the joint between the drain grid support frame and surrounding tiling is formed using a mastic type of grout (e.g. silicon) to remain flexible.

Under no circumstances should anyone walk or stand directly on the Fundo before it is tiled. Cover the Fundo with a board whilst tiling walls to avoid indentations and surface contamination.