Septic Tanks

Septic Tanks picture Septic Tanks are two chambers units designed, in accordance with BS6297, to separate waste solids from waste liquor.

The solids remain in the first chamber from where they are periodically de-sludged whilst the liquor is displaced to a subsurface irrigation system which should be suitable sized by means of a percolation test as detailed in PPG4 and BS6297.

The horizontal septic offers both easier access for maintenance and the opportunity of installation savings compared to a spherical unit of the same capacity.


Aluline Environmental Solutions can offer additional capacities and different dimensions to those shown on this page.


Contact us on 0844 7701555 if you have any particular requirement.

SIZING CHART
Code Capacity (litres) Person Served 180 l/h Inlet to Base 
(mm)		 Outlet to Base
(mm)		 Tank Diameter
(mm)		 Tank Length
(mm)		 Access (mm) Pipe Size (mm)
ASF1 2800 4 1230 1180 1220 2400 600 110
ASF2 3600 8 1540 1490 1530 2000 600 110
ASF3 4500 12 1540 1490 1530 2500 600 110
ASF4 6000 20 1540 1490 1530 3300 600> 110
ASF5 7500 27 1540 1490 1530 4100 600 160
ASF6 9000 35 1540 1490 1840 4900 600 160
ASF7 12000 50 1850 1800 1840 4800 600 160
ASF8 15000 65 1850 1800 1840 6025 600 160
ASF9 18000 80 1850 1800 1840 7150 2x600 160
ASF10 22500 102 1850 1800 1840 8800 2x600 160