The challenge
The water serving an English luxury private estate had a long history of biofilm and algae building up in its borehole and distribution pipework, and the conventional chemical treatment in place was not clearing it.
Biofilm is where waterborne pathogens shelter and re-grow, so for an estate carrying a duty of care over its water, persistent biofilm is a standing Legionella risk, not a cosmetic problem.
What we did
We introduced a disinfection regime that targets biofilm directly, dosed continuously at a low concentration across the system, rather than relying on the heavier chemical load the estate had been using.
Over a ten-week trial, just 62.5 litres treated 1.6 million litres of water, a fraction of the previous chemical volume, and the water was tested by the estate's local water-authority laboratory.
The result
Cleared completely, with far less chemistry.
The biofilm was visibly gone from the pipework, and the result was achieved with a fraction of the chemical the estate had relied on.
The water was tested by the estate's local water-authority laboratory, an independent check on both the pathogen counts and the biofilm clearance.
Why it matters
For estates, hotels and any operator carrying a water-safety duty, biofilm is the hardest part of the system to control and the easiest to ignore. This shows it can be cleared completely, and kept clear, with less chemistry in the water, not more.
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