Surveys
A dye test introduces coloured non-toxic dye into a fixture or drain and tracks where it emerges. It is used to prove which drain a fixture connects to, identify misconnections between foul and surface water systems, and confirm the source of a leak or pollution.
It is the simplest way to answer the question "where does this pipe actually go?", and it is often the first step in resolving a dispute with a neighbour or a water company over a shared run.
Dye testing is also how misconnections are proven — a bathroom waste discharging into a surface water drain will show up immediately at the outfall.
It is normally done alongside a CCTV survey, which shows the pipe condition while the dye establishes the connectivity.
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0330 1331 347Related service: CCTV Drain Surveys
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