Problems in closed water, chilled water and condenser water systems may only come to light when a component in the system stops working – by which time the damage could be even worse than it appears.

By ensuring that water systems are treated and protected at pre-commissioning stage, many of the more common hazards can be avoided or reduced.

Parsloe Simpson WT Consultants is a partnership of two of the most respected independent names in the UK water treatment industry. Chris Parsloe and Dr Pamela Simpson between them offer 40 years’ experience dealing with issues relating to water quality in closed circuit systems, from pre-commissioning stage through to maintenance and operational effectiveness.

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Find out more, call: 01384 441851 or 07771 788048 or email

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How we can help:

Water quality problems in pipework systems leads to costly drain downs, system re-cleans and disruption. Poor water quality could indicate underlying problems such as corrosion or microbially influenced corrosion.

We offer independent, professional advice to building contractors and commissioners at the right time – before the expensive errors are made. We can provide:

  • Independent water quality assessment during pre-commission cleaning to ensure BSRIA compliance at practical completion.
  • Auditing of on-site water treatment procedures during pre-commission cleaning to prevent problems from microbiological and chemical contamination.
  • Preparation/review of pre-commission cleaning method statements.
  • Water chemistry and microbiology monitoring during system alterations with a comprehensive report containing recommendations required to be BSRIA compliant.
  • Independent monitoring of water quality in fully operational systems to resolve and ensure ongoing compliance
  • Investigations into pipe/system water quality related failures by our experienced team of experts.
  • Independent surveys of water quality and pipework condition for clients purchasing new buildings.
  • Comprehensive training packages covering all aspects of water management and compliance with BSRIA guidelines.

Who are we

Chris Parsloe

Chris is a Chartered Building Services Engineer and Fellow of the CIBSE. He formed Parsloe Consulting Ltd in 2003 after successful periods in building services design and research. Chris is a well-known technical author whose name appears in numerous industry guides and codes relating to the design and commissioning of pipework systems.

Dr Pamela Simpson

As a Chartered Fellow of the Royal Society of Biology, Pamela established Whitewater Technologies Ltd in 1998, before which she spent over 8 years working in the Speciality Chemicals Industry initially as a Technical Director and European Director of the Industrial Biocides Division of a major chemicals manufacturing and processing company.

In addition, we can draw upon a network of highly qualified and experienced associates in corrosion, water treatment chemistry and other relevant areas to assist where required.