The first of 26 Victorian sewerage contraptions has been unearthed in Hipperholme.
Yorkshire Water is removing the Buchan systems that channel household waste to the sewage system from the pipe system as part of a pro-active initiative to minimise sewer flooding.
Originally fitted in 1865 to prevent gases, smells and vermin entering Victorian cellared properties the Buchans struggle to cope with modern day wastes.
Weighing up to 100 kilos the U-shaped piping will be removed and replaced with straight piping allowing for waste and water to run smoothly to the sewer.
The pipe systems will be removed throughout Brighouse, Halifax, Bradford and Cleckheaton.
Project manager Chris Bradshaw said: “On this occasion we identified a large number of Buchan traps in one area and, instead of doing the work piecemeal, we will aim to remove as many as possible in the shortest possible time.”
It will take depending on their depth will take between half and three days to remove them. The £250,000 Calderdale pilot scheme is expected to be completed by the end of March.
Up to 100 residents will be affected by the project but all have been informed by writing. Yorkshire Water said its contractors, Barnhale WSP, will need access to the property but staff will carry identification.