Use code SEWAGE5 for 5% off spare parts orders over £250

7 to 12 persons

Here at Direct Drainage we stock a large range of sewage treatment systems and septic tanks.

Browse the range below to see what is suitable for a household of 7 to 12 people.

Clearwater BioAir CW3 Sewage Treatment System (up to 9 person)
Regular price
from £0.00
Sale price
from £0.00
Regular price
£0.00
Unit price
per 
Sold out
Klargester BioAir 3 Sewage Treatment System (up to 9 person)
Regular price
from £2,471.00
Sale price
from £2,471.00
Regular price
£2,944.00
Unit price
per 
Sold out
Klargester BioAir 3 Economy Sewage Treatment System (up to 9 person)
Regular price
from £0.00
Sale price
from £0.00
Regular price
£2,944.00
Unit price
per 
Sold out
Klargester BA BioDisc Sewage Treatment System (up to 6 person)
Regular price
from £3,970.00
Sale price
from £3,970.00
Regular price
£4,100.00
Unit price
per 
Sold out
Tricel Novo UK8 Sewage Treatment System (up to 8 person)
Regular price
from £2,295.00
Sale price
from £2,295.00
Regular price
£2,655.00
Unit price
per 
Sold out
WPL Diamond DMS3 (up to 11 people)
WPL Diamond DMS
Regular price
from £2,584.10
Sale price
from £2,584.10
Regular price
£3,614.15
Unit price
per 
Sold out
Clearwater BioTec BTA2 (No Longer Available)
Regular price
£0.00
Sale price
£0.00
Regular price
£0.00
Unit price
per 
Sold out
Harlequin HC9 Hydroclear Sewage Treatment System (up to 9 person)
Regular price
from £2,645.00
Sale price
from £2,645.00
Regular price
£2,770.00
Unit price
per 
Sold out
Harlequin CAP9 (up to 9 Person)
Regular price
from £2,585.00
Sale price
from £2,585.00
Regular price
£2,690.00
Unit price
per 
Sold out
Clenviro MATRIX CLF1A Sewage Treatment System (up to 9 person)
Regular price
from £2,830.00
Sale price
from £2,830.00
Regular price
£2,990.00
Unit price
per 
Sold out
Tricel Novo UK10 Sewage Treatment System (up to 10 person)
Regular price
from £2,848.00
Sale price
from £2,848.00
Regular price
£3,100.00
Unit price
per 
Sold out
Klargester BioFicient 3 (No Longer Available)
Regular price
£0.00
Sale price
£0.00
Regular price
£4,680.00
Unit price
per 
Sold out
Klargester BA-X BioDisc Sewage Treatment System (up to 9 person)
Regular price
from £4,574.00
Sale price
from £4,574.00
Regular price
£4,700.00
Unit price
per 
Sold out
Clearwater BioTec BTA3 (No Longer Available)
Regular price
£0.00
Sale price
£0.00
Regular price
£0.00
Unit price
per 
Sold out
Clearwater BioAir CW4 Sewage Treatment System (up to 12 person)
Regular price
from £0.00
Sale price
from £0.00
Regular price
£0.00
Unit price
per 
Sold out
Harlequin CAP12 (up to 12 Person)
Regular price
from £3,245.00
Sale price
from £3,245.00
Regular price
£0.00
Unit price
per 
Sold out
Tricel Novo UK12 Sewage Treatment System (up to 12 person)
Regular price
from £3,014.00
Sale price
from £3,014.00
Regular price
£3,170.00
Unit price
per 
Sold out
Clenviro MATRIX CLF2 Sewage Treatment System (up to 12 person)
Regular price
from £3,180.00
Sale price
from £3,180.00
Regular price
£3,330.00
Unit price
per 
Sold out
Klargester Gamma Septic Tank 3500L (single stage)
Regular price
£1,326.00
Sale price
£1,326.00
Regular price
£1,465.00
Unit price
per 
Sold out
Klargester Gamma Septic Tank 3500L (twin stage)
Regular price
£1,454.00
Sale price
£1,454.00
Regular price
Unit price
per 
Sold out
Tricel SR8 Sewage Treatment System (up to 8 Person)
Regular price
from £2,090.00
Sale price
from £2,090.00
Regular price
£2,655.00
Unit price
per 
Sold out