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MATERIALS
Why subsoil water drainage U'HepEline' ;vi"trif"ied pipes Concrete porous pipes 681194:1969 may be necessary 75 mm centres o8mm;d:~~""l Non-porous invert
1. To eliminate surface ==_--.,'/30 + .1
flooding and so
produce a dry...
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PIPES
British Standard Markings 8565:1981
~ Licence Number Grooves Lengths of Straight BS BS BS65 Licensed Pipes & Channels sizes sizes
Manufacturers only BS pipes can be made mm mm
If other ordinary BS pipes, then plus one...
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CLAY
BS Channel Interceptor Detail of Intercepting Chamber Fresh Air Inlet
Available in 100 mm to 450 mm - Fresh air inlet
nominal bore sizes (see section below)
To receive stopper Type B Vertical Inspection 600 mm -100m pipe
Levelling...
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CLAY
Square Curved Square Oblique
Also available as half section 8865 Also available as 8865 8865 Also available as half section
channel junctions half section channel junctions
channel junctions
90" ( 90°
Branch Angle
Junction...
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CLAY
Yard gully to 8S65 Angle or Phillips Gully Reversible Gully
R o u n d to p fo r u s e
w ith r a is in g p ie c e Hopper can be turned in P la in e n d e d
any direction independent
P 't r a p of trap
,6 4 m m Available...
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