grooves around the outer edge of its face. The spray in
this type of head can be regulated. The economy head,
also shown in figure 5-29, has a restricted nozzle that
provides a finer spray and uses less water. Both shower
heads have a ball-and-socket joint for adjusting the
direction of the spray.
Shower heads are usually made of chrome- or
nickel-plated brass. Newer types of shower heads are
made of noncorrosive plastic. Deposits tend to form on
the shower head because of the chemical content of the
water; therefore, occasional maintenance is required to
keep them functioning properly.
The most important requirement in a shower
installation is the absolute waterproofing of walls and
floors. Walls are less of a problem than floors since
they are subject only to splashing of water and do not
have water standing or collecting on them. Careful
installation of tile or other impervious material with
waterproof cement generally suffices to provide a
waterproof wall installation. In the installation of the
floor, an impervious waterproof subbase must be put
under the shower floor, or water standing on the floor
will gradually seep through and cause leaks.
Concrete shower pans, used with prefabricated
steel shower stalls, are relatively easy to install. In
many cases, steel shower stalls are set up after the
original construction. In this case, the cement base is
usually not recessed into the floor but is laid directly on
top of the floor.
Generally, steel fabricated shower stalls are being
replaced with fiber glass and plastics. All of the units
are installed in the same manner. The dimension for the
finished interior of a shower stall should be at least 30
inches. The shower head should be a minimum of 68
inches above the level of the drain on the shower pan
(fig. 5-30). Figure 5-31 shows a cutaway view of a
shower pan. All seams should be caulked to prevent
leaking, and all pipe openings in the wall of the stall
should be sealed. Be sure to follow the manufacturers
instructions that accompany the fixtures and trim. In
Figure 5-30.Shower stalls and sections.