Bidets of this type may:
a.
Be supplied with cold and / or hot water
through type AA, AB, AD or AUK1 backflow
prevention arrangement or type DC device
serving the bidet only. See Diagram 3: or
Type AA, AB, AD or AUK1 air gap with or
Type AA, AB, AD or AUK1 air gap with or
Type AA, AB, AD or AUK1 air gap with or
Type AA, AB, AD or AUK1 air gap with or
without blended water cistern or type DC
without blended water cistern or type DC
without blended water cistern or type DC
without blended water cistern or type DC
backflow Prevention device.
backflow Prevention device.
backflow Prevention device.
backflow Prevention device.
b.
Be supplied with cold water from an
independent distributing pipe serving the
bidet only, or a common distributing pipe
serving the bidet and which may also serve
a WC or urinal flushing cistern at a lower
level. See Diagram 4; or
c.
Be supplied with hot water from a water heater, which is supplied from an independent
distributing pipe, that serves the bidet only. See Diagram 4: or
Diverter or
separate control
valves to hose or
ascending spray
Type AA, AB, AD or AUK1 air gap
with or without blended water cistern
or Type DC backflow prevention
device
Zone of backflow risk
300mm minimum
Hot and
cold water
supply or
distributing
pipes to
mixer
Blended cold
and hot water
distributing
pipe
FL
Diagram 3
Diagram 3
Diagram 3
Diagram 3
distributing pipe, that serves the bidet only. See Diagram 4: or
d.
Where the bidet is at a lower elevation than
any other outlets or appliances, be supplied
with water from a common cold and / or
hot water vented distribution pipe providing
that;
(i)
the elevation of the spillover level of the
bidet, if there is no flexible hose; or
(ii)
the elevation of the spray outlet, with the
hose extended vertically above the spill
over level of the bidet
Whichever is the highest, is not less than
300mm below the point of connection with the
distributing pipe which serves over appliances
or outlets. See Diagram 5.
SgV
WP
Storage cistern with
Type AG air gap
Hot water
heater serving
single bidet only
(see G15.10c)
FL
DP to serve WC
or urinal flushing
cistern only (see
G15.10b)
Cold water DP to
other appliances
Bidet
Diagram 4
Diagram 4
Diagram 4
Diagram 4
06
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