If a cold water tank in Sheffield and South Yorkshire is dirty, oversized or has not been looked at for a long time, a clean and disinfection puts it right and gives you the paperwork to prove it.
Water Hygiene Services is an independent Legionella control company based in Leeds, about 35 miles from Sheffield. We clean and disinfect cold water tanks for estates managers, facilities managers and building and property managers in Sheffield and South Yorkshire.
Book a tank clean in Sheffield
What is a cold water tank clean and disinfection?
A tank clean removes sediment, scale, rust, sludge and biofilm from the inside of a cold water storage tank. The tank is then disinfected using an approved method and contact time, so bacteria levels fall and the stored water is safe to use. We work to HSG274, supporting ACoP L8.
Cleaning and disinfection are linked but not the same. Cleaning removes physical contamination, and disinfection treats the tank and the system afterwards. In most cases both are needed, because disinfecting a dirty tank does not last. For the full detail, see our Tank Cleaning and Disinfection page.
- Visible dirt, sediment or sludge in the tank
- Rust staining
- Damaged lids or missing insect screens
- Stale or discoloured water
- Poor microbiological results
- A tank that has been unused, repaired or altered
- A risk assessment that recommends cleaning
Tank cleaning in Sheffield
Yorkshire Water supplies the area. Older buildings and former industrial sites often have tanks sized for a past use, holding more water than the building now needs.
We clean tanks in:
- The two universities and their student accommodation
- Hospitals, clinics and care homes
- City centre offices, hotels and venues
- Former steelworks and industrial buildings now used as offices, studios and business units
- Large retail and leisure centres
How a tank clean is carried out
- We plan the work with you so the tank can be isolated and drained safely.
- The tank is drained and cleaned inside, removing sediment, scale, rust, sludge and biofilm.
- We check the condition of the lid, screens and fittings, and note any defects.
- The tank and system are disinfected using an approved agent and contact time.
- The system is flushed and returned to service.
- You receive a job sheet and certificate, and notes on any defects found.
Book a tank clean in Sheffield
Questions we are asked in Sheffield
Our tank is bigger than the building now needs. Can it be reduced?
Often, yes. We can advise on reducing storage, and the clean is a good time to look at it.
How often should a tank be cleaned?
There is no single frequency for every tank. HSG274 expects tanks to be inspected regularly, and cleaned and disinfected where inspection shows it is needed.
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Very happy with their very high standard of work Water Hygiene Services have been carrying out legionella risk assessments for us for a couple of years now. We have been very happy with their very high standard of work, their ability to work to tight deadlines and the general professional service they provide
