Soakaways

Milton Precast standard chamber sections can be perforated with 75mm diameter holes for use as a soakaway, providing a minimum area of exfiltration of 50,000mm2 per metre of nominal diameter per metre of depth and comply to BS EN1917:2002/BS 5911-3:2010. 3660mm and 4000mm which are not covered by the British Standard but comply with all the relevant provisions.

Shaft/chamber section Standard number of perforations per section
DN 0.50m deep 0.75m deep 1.00m deep
900
1050
1200
1350
1500
1800
2100
2400
2700
3000
3660
4000
6
8
8
8
10
12
12
14
16
18
-
-
9
12
12
12
15
18
18
21
24
27
33
36
12
16
16
16
20
24
24
28
32
36
44
48

 

Tel: (01795) 425191
Fax: (01795) 420360
E-Mail: sales@miltonprecast.com

Milton Pipes Limited, Milton Regis, Sittingbourne, Kent. ME10 2QF