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d r ai n T R A D E R


O s m a o n … T h e i m p a ct of n e w d e si g n a n d c o n st r u cti o n g ui d a n c e


W


e’r e b a c k wit h t h e fi n al i n st al m e nt of o ur S ci e n c e of Dr ai n a g e s eri e s wit h O s m a. T hi s ti m e, M arti n L a m bl e y, pr o d u ct m a n a g er


f or st or m w at er m a n a g e m e nt at O s m a’s p ar e nt br a n d W a vi n, i s e x pl ori n g h o w n e w D e si g n a n d C o n str u cti o n G ui d a n c e i s g oi n g t o a ff e ct t h e t y p e of m at eri al s gr o u n d w or k er s will n e e d t o g et t o gri p s wit h.


T h e n e w D esi g n a n d C o nstr u cti o n G ui d a n c e f or f o ul a n d s urf a c e w at er s e w ers is s et t o c h a n g e t h e f a c e of U K dr ai n a g e f or e v er. H a vi n g c o m e i nt o e ff e ct as of A pril 2 0 2 0, t h e m u c h- a nti ci p at e d g ui d a n c e h as, f or t h e first ti m e, s et o ut a st a n d ar dis e d pr o c ess f or dr ai n a g e s yst e ms b y cl arif yi n g w h at is e x p e ct e d of d e v el o p ers if t h e y ar e t o b e a d o pt e d b y w at er a n d s e w er a g e c o m p a ni es ( W a S Cs). W hil e it pr e d o mi n a ntl y f o c us es o n t h e a d o pti o n of s ust ai n a bl e dr ai n a g e s yst e ms ( S u D S), t h e g ui d a n c e will als o h a v e a n i m p a ct o n t h e e v er y d a y li v es of gr o u n d w or k ers.


T h e n e e d f or a f or m al, n ati o n wi d e a p pr o a c h ar o u n d w a ys of w or ki n g h as b e e n l o n g o v er d u e. T his is es p e ci all y tr u e f or t h e S o ut h E ast, w h er e e a c h di ff er e nt W a S C h as its o w n stri ct s p e ci fi c ati o ns t h at gr o u n d w or k ers ar e e x p e ct e d t o a d h er e t o. If a s yst e m is t o b e a d o pt e d, t h e j etti n g pr ess ur e a n d m at eri als us e d, f or e x a m pl e, ar e all pr e d et er mi n e d b y t h e W a S C f or t h at r e gi o n. W hil e t his h el ps t o m ai nt ai n t h e r e gi o n’s hi g h st a n d ar ds, it c a n c a us e c o nf usi o n f or gr o u n d w or k ers as t h er e ar e s e v er al c o d es, e a c h wit h v ar yi n g r e q uir e m e nts, t h at t h e y n e e d t o b e a w ar e of. T his is es p e ci all y p erti n e nt f or t h os e w or ki n g i n ar e as t h at sit b et w e e n t w o di ff er e nt w at er a ut h oriti es.


Si n gi n g f r o m s a m e h y m n s h e e t


Wit h t h e l at est e diti o n of t h e D esi g n a n d C o nstr u cti o n G ui d a n c e, w at er c o m p a ni es a cr oss t h e c o u ntr y ar e n o w w or ki n g fr o m t h e s a m e d o c u m e nt


4 4 d r ai n T R A D E R | M ay 2 0 2 0 | w w w. dr ai ntr a d erlt d. c o m


w h e n it c o m es t o a d o pti o n. A g ai n, f or t h os e d e v el o p ers t h at w or k al o n gsi d e w at er c o m p a ni es i n t h e S o ut h E ast, f or e x a m pl e – i n cl u di n g A n gli a n, S o ut h er n a n d T h a m es W at er – t his m e a ns m or e fr e e d o m, as t h e y’ll h a v e t h e s a m e m at eri als a v ail a bl e t o t h e m as t h e r est of t h e c o u ntr y. T his c h a n g e will b e m ost pr e v al e nt d uri n g t h e e arl y p h as es of a d e v el o p m e nt w h e n art eri al r o a d a n d e n a bli n g w or ks ar e c arri e d o ut. U nif yi n g t h e pr o c ess i n t his w a y will o p e n u p t h e w h ol e c o u ntr y t o n e w t e c h ni q u es a n d pr o d u cts, all o wi n g o ur dr ai n a g e s yst e ms t o d e v el o p al o n gsi d e ot h er t e c h n ol o gi c al a d v a n c es i n t h e b uilt e n vir o n m e nt.


T h e p o w e r of pl a sti c


O v er t h e y e ars, pl asti c h as b e c o m e i n cr e asi n gl y h ail e d as a k e y m at eri al t o us e w h e n it c o m es t o dr ai n a g e, d u e t o its d ur a bl e y et fl e xi bl e n at ur e, a n d t his s hift s h o ws n o si g n of sl o wi n g d o w n. Its li g ht w ei g ht pr o p erti es als o m a k e it e asi er t o h a n dl e, q ui c k er t o i nst all a n d a n o v er all s af er o pti o n o n sit e. T his will b e a bi g c h a n g e f or t h e s o ut h e ast er n w at er c o m p a ni es i n p arti c ul ar, as t h e y h a v e hist ori c all y s h o w n a pr ef er e n c e t o w ar ds m or e tr a diti o n al cl a y a n d c o n cr et e pr o d u cts.


O n e f o ul a n d s urf a c e w at er dr ai n a g e s yst e m t h at h el ps t o ai d t h e s wit c h fr o m tr a diti o n al m at eri als t o pl asti c is Os m a Ultr a Ri b, w hi c h is t h e U K’s o nl y si n gl e w all e d ri b b e d s yst e m. Its u ni q u e ri b b e d d esi g n o ff ers e x c e pti o n al a xi al ri gi dit y a n d r a di al str e n gt h, w hil e its u ni q u e j oi nt d esi g n m a k es i nst all ati o n q ui c k a n d d eli v ers o pti m u m h y dr a uli c fl o w. Wit h a sti ff n ess cl ass of S N 8 a n d b ei n g j ett a bl e t o a pr ess ur e of 2, 6 0 0 psi, t h e s yst e m h as n ot o nl y b e e n a p pr o v e d b y w at er c o m p a ni es f or s e w er a d o pti o n, b ut als o m e ets t h e r e q uir e m e nts of t h e n e w g ui d a n c e.


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