Immediately I would like to note that it is advisable to install the bath almost as a last resort. The fact is that by laying tiles on the wall above an already installed bathroom, you risk dropping any tool or the tile itself, which will inevitably lead to damage to the enamel. Better to lay the tiles so that there is one empty row to the edge of the tub. The bath itself can be installed on the legs that are supplied in the kit, but this is not always convenient. The problem can be solved by installing the bathtub on bricks. To do this, it is enough to put two rows of bricks at a distance of 50-60 cm from each other, so that the height of the «fences» is about 19-20 cm. Measure the height of the sides of the bath so that the total height after installation is about 60 cm. The direction should be perpendicular to the longitudinal bath axis. Before installing, inspect the bottom of the bath, make sure that there are no irregularities in the installation places on the bricks. Please note that if you are interested in making money at home, then by clicking on the above link, you will receive detailed information about this.
Between the bottom of the bathtub and the bricks, it is better to lay a layer of thin insulation on a fabric base so that the bricks do not crumble, seal the installation sites with foam or adhesive. A little secret for steel bathtubs. In order for the water in the bath not to cool down longer, and so that the water jet does not fall to the bottom of the bath with a crash, insulation or foam can be applied or glued to the entire surface of the bottom from the outside.
When installing a cast-iron bath, you don’t have to worry about stability and stability, it is enough to seal the junction with the bricks with an adhesive.
A steel bathtub tends to slightly change its linear dimensions during heating and cooling due to the expansion and contraction of the metal, therefore it is necessary to fix the corners closest to the long wall so that the gap between the bathtub and the wall does not gradually increase. The longitudinal abutment of the bathtub edge to the wall should be as rigid as possible. The edges of the sides should be installed strictly horizontally, since the slope for the drain is provided in the very shape of the bottom of the bath.
Do not forget that lightweight and therefore unstable acrylic bathtubs must be attached to the walls during installation.!
After installation, you just have to lay out the last layer of tiles directly above the side of the bath, leaving a small gap, which then fill with foam, closing the path under the bath to water.