3 "Ficheiro:The_syphon_-_panoramio.jpg".

Ficheiro:The syphon - panoramio.jpg

archive.org/web/20161028170355/http://www.panoramio.com/user/7091098?with_photo_id=106244129 operator: Panoramio described at URL: https://web.archive...

Ficheiro:Trestle at the syphon - panoramio.jpg

archive.org/web/20161030092747/http://www.panoramio.com/user/7091098?with_photo_id=104210754 operator: Panoramio described at URL: https://web.archive...

Ficheiro:Sewer anti-syphon vent with flow direction, Bideford. - panoramio.jpg

archive.org/web/20161112081654/http://www.panoramio.com/user/777952?with_photo_id=41619668 operator: Panoramio described at URL: https://web.archive...

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