The method of supplying water to an
ascending spray and / or hose and
spray bidet is illustrated in Diagram
3 and which is described in the formal
guidance, is difficult to achieve in
practice. The air gap should be located
above the fully extended hose and spray,
or zone of backflow risk, and this height
may need to be increased to provide
sufficient water pressure, to overcome
friction loss in the pipes and fittings, in
order to operate the ascending spray
and hose spray effectively. This method
of supplying blended water to a bidet
involves complicated control methods
as the control of water to the bidet
itself has to be linked with the control
of water flow, and temperature, upstream of the air gap,
blended water cistern or DC device.
Diagram 5
Diagram 5
Diagram 5
Diagram 5
Cold water
storage
cistern
SgV
SgV
SgV
The bidet must be located
below the spillover lever of the
lowest sanitary fitting and
below any hot water storage
vessel or ancillary pipework
Not less
than
300mm
Bidet with
ascending
spray only
Not less
than
300mm
Mixing
valve
Bath
Washbasin
FL
Diagram 5
Diagram 5
Diagram 5
Diagram 5
blended water cistern or DC device.
Installation
Installation
Installation
Installation ---- Basin
Basin
Basin
Basin / Bath taps
/ Bath taps
/ Bath taps
/ Bath taps
1.
Identify all components are present prior to starting
installation.
2.
Install the taps to the basin / bath, ensuring the plinth
is fitted between the tap body and the basin / bath. Slide
the washer (6) onto the threaded tail of the tap and screw
the backnut (7) onto the tail until tight to secure the taps
in place.
Note
Note
Note
Note:
:
:
: Supplied with plastic backnuts which must be
tightened fully using a suitable spanner.
3.
Connect the hot and cold water supplies to the
threaded tails.
4.
Turn on the water supplies. Operate both taps, letting
the water flow for a few minutes to check all joints and
connections for any leaks.
07