Maximum drainage falls

Foul and surface water, private drains and public sewers, land drains and soakaways, filter drains and any other ways of getting rid of water.
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jonno008
Posts: 2
Joined: Tue Feb 05, 2008 6:34 am
Location: gloucestershire

Post: # 25933Post jonno008

Does any one know what the maximum recommended fall is on fowl drainage (solids) as im lead to believe there is one, and exceeding it may cause problems. Thanx. :)
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Dave_L
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Joined: Fri Jul 28, 2006 8:47 pm
Location: Somerset
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Post: # 25934Post Dave_L

It's all on the main site Jonno......

http://www.pavingexpert.com/drain02.htm
RW Gale Ltd - Civils & Surfacing Contractors based in Somerset

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lutonlagerlout
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Posts: 15184
Joined: Fri Aug 04, 2006 12:20 am
Location: bedfordshire

Post: # 25942Post lutonlagerlout

1:40 is optimum,this works out at about 25mm per metre
our local BC prefer you to tumble a section rather than have say 1:20 as this causes separation ,which isnt good
up to 1:100 can be used for surface water
cheers LLL :)
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