Servicing and Maintenance For Legionella Control

Private water supplies should be tested at least once a year to ensure they remain safe and compliant with regulations. If your supply serves multiple properties or is used for commercial purposes, more frequent testing may be required. Regular testing helps detect bacteria, chemicals, and other contaminants before they become a risk.

Private water supplies can be affected by bacteria, viruses, heavy metals, and chemical pollutants. The most common contaminants include:

• E. coli and coliform bacteria, which indicate faecal contamination.
• Legionella, which poses a risk in stored water systems.
• Nitrates and pesticides, often found in agricultural areas.
• Iron and manganese, which can affect taste, colour, and plumbing.
• pH imbalances, which may cause corrosion in pipes.

Not all private water supplies require filtration or treatment, but most benefit from some level of purification. The need for treatment depends on water quality test results. Common treatment methods include UV disinfection, filtration, water softening, and pH correction to ensure safe and pleasant water for drinking and everyday use.

If your supply serves only your household, there are no legal requirements to test it, but it is strongly recommended for health reasons. However, if your supply serves multiple properties, is used for a business, or provides water to tenants or the public, you are legally required to test it regularly and ensure it meets Scottish Water quality standards under the Private Water Supplies (Scotland) Regulations.

Signs that your water may be unsafe include:

• Changes in taste, smell, or colour (e.g., metallic, earthy, or chlorine-like odours).
• Cloudiness or sediment in the water.
• Recurring plumbing issues, such as scale build-up or corrosion.
• Health symptoms like stomach upsets or skin irritation in those using the water.

However, many contaminants are invisible, which is why regular testing is the only way to be certain your water is safe.

If testing confirms contamination, stop using the water for drinking and cooking until it has been treated. Depending on the issue, solutions may include:

• Shock chlorination to eliminate bacteria.
• Upgrading or replacing filtration and disinfection systems.
• Repairing damaged pipes, tanks, or boreholes that may be introducing pollutants.
• Installing preventative measures, such as UV disinfection or sediment filtration.

PHX Water can provide a full risk assessment and treatment plan to restore your water quality quickly and safely.

A well-maintained water supply lasts longer and remains safer. Key maintenance tasks include:

• Annual testing to monitor quality.
• Regular servicing of pumps, tanks, and filtration systems.
• Cleaning and disinfecting storage tanks to prevent bacteria build-up.
• Inspecting pipework and fittings for leaks or contamination risks.

Scheduling routine maintenance with a professional water treatment specialist ensures that your private supply remains reliable, efficient, and compliant.