Photographs
| Image | Photographer | Licence | Source |
|---|---|---|---|
 Most homes that rely on a septic tank or treatment plant are rural, like this Welsh hill farm | Bill Boaden (via Geograph Britain and Ireland) | CC BY-SA 2.0 | Another Welsh hill farm - geograph.org.uk - 3273830.jpg |
 A septic tank installation in Huntley, Gloucestershire | Jonathan Billinger (via Geograph Britain and Ireland) | CC BY-SA 2.0 | Septic tank installation - geograph.org.uk - 7914060.jpg |
 Mini digger near Hereford | John Winder (via Geograph Britain and Ireland) | CC BY-SA 2.0 | Mini digger near Hereford - geograph.org.uk - 4920849.jpg |
 Only the covers and control kiosks show above ground | Paul Collins (via Geograph Britain and Ireland) | CC BY-SA 2.0 | Sewage Treatment Installation, Eastgate, Holme next the Sea - geograph.org.uk - 8397254.jpg |
 Photographed in St Ives, Cornwall | Mutney | CC BY-SA 4.0 | Cornwall Council vacuum tanker truck, St Ives, Cornwall - February 2023.jpg |
 Keep them clear so the tank can be emptied and inspected | Wikideas1 | CC0 1.0 (public domain dedication) | Septic tank image 01.jpg |
 Much of rural Scotland is off the mains sewer | Julian Paren (via Geograph Britain and Ireland) | CC BY-SA 2.0 | Farmland of the Black Isle - geograph.org.uk - 7621453.jpg |
 Many rural English homes rely on a septic tank or treatment plant | Bill Harrison (via Geograph Britain and Ireland) | CC BY-SA 2.0 | Yorkshire Dales view - geograph.org.uk - 6011319.jpg |
 Nant Ystalwyn farmhouse in Cwm Tywi, Powys, mid Wales | Roger D Kidd (via Geograph Britain and Ireland) | CC BY-SA 2.0 | Nant Ystalwyn farmhouse in Cwm Tywi, Powys - geograph.org.uk - 7980616.jpg |
 Farmhouses off the Mountain Road, County Down, Northern Ireland | Eric Jones (via Geograph Britain and Ireland) | CC BY-SA 2.0 | Farm houses off the Mountain Road - geograph.org.uk - 6329562.jpg |
We've cropped, resized and converted these photographs to modern image formats. The modified versions of CC BY-SA photographs are shared under the same licence as the original. No changes imply endorsement by the photographers.
Diagrams
The septic tank, sewage treatment plant and "how it works" diagrams were drawn by Septic Tank Quotes. They're simplified illustrations, not engineering drawings.