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Pressure limiting valve
NOT REQUIRED at pressures
below 5 bar unless any system
components have a lower
maximum working
pressure
Mains
supply
Double check
valve NOT REQUIRED
unless supply pipe
services more than
one dwelling
See Note 1
DW
WM
Kitchen sink
Kitchen
Check valve
Bath Toilet
NOT REQUIRED
unless chemical
water treatment
is fitted
The size of the distribution pipes supplying
the manifold should be calculated using
the method set out in BS 6700. A typical
diagrammatic arrangement of a system
using Manifold Type 1 is shown below.
This is only meant to show the principles
involved and the actual connection of
fittings to the manifold will need to suit the
arrangements shown on page 35.
Note 1 - if it is proposed to fit chemical water
treatment such as a water softener this should
be fitted in this location and the cold water
branch in the sink should be branched off the
cold water main prior to the treatment device
instead of the cold water manifold.
Any other isolating/control valves and
backflow protection devices should be
provided as necessary to comply with the
Water Regulations.
Airing
Scale
cupboard
inhibitor
NOT REQUIRED
Thermal
Store
Hand
cistern
basin
Bathroom
Toilet
Hand
cistern
basin
Cloak room
Page 39
APPENDIX B
En-Suite
Toilet
Shower
cistern
Hand
basin
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