PD 855468:2015

What is PD 855468- Guide on flushing and disinfection of services supplying water about?

PD 855468 has been developed to build on the guidance previously given in BS 8558 on the flushing and disinfection of services supplying water for domestic use within buildings and their curtilages. PD 855468 provides guidance on cleaning, flushing and disinfecting water supply systems to control microbiological growth and remove debris.

PD 855468 provides guidance on cleaning, flushing and disinfection of services supplying water for domestic purposes within buildings and their curtilages, including those for the production of foods.

The main objective of the best industry guidance and recommendations provided by PD 855468, is to ensure supply of water is safe to consume while also minimizing the risk of corrosion and damage.

The guidance applies to:

• Initial commissioning of new or extended systems
• Maintenance of existing systems
• Alteration of existing systems
• Water quality management prior to occupation or as a result of low/no occupancy or usage
• (remedial) response to microbiological problems is identified.

Note 1: The techniques set out in this standard are also applicable to the management of premises and systems where water is provided from a private supply.

Note 2: PD 855468 excludes closed systems and other industrial processes.

Who is PD 855468- Guide on flushing and disinfection of services supplying water for?

PD 855468 on flushing and disinfection of services supplying water is relevant to:

• Public health professionals
• Regulators
• Water treatment companies
• Building services engineers
• Plumbing and pipeline contractors
• Owners of public buildings

Why should you use PD 855468- Guide on flushing and disinfection of services supplying water?

The guidance provided by PD 855468 is intended to help prepare new and existing systems for use and control microbiological growth in water systems for supply, storage and distribution, to ensure that:

• Residues of construction are adequately flushed from water distribution systems
• Appropriate water quality is achieved
• Appropriate disinfectants and processes are used
• Construction debris and dust are removed
• Risk of corrosion and damage to fixtures, fittings and sensitive plant is minimized
• Adequate records of cleaning are produced
• Stagnation is avoided or managed
• Appropriate tools and personnel are deployed for the relevant tasks

Thus, whether you are preparing new systems, or maintaining or altering existing systems, PD 855468 can help you achieve high water quality and minimize the risks of corrosion and damage.