Dr. Catherine Whapham with David Harper, Author at Harper Water

Dr. Catherine Whapham with David Harper

Multi-Drug Resistant Microorganisms In Your Drains

Evidence linking the role of water services – both potable influent and waste waters – in the transmission of waterborne pathogens such as Legionella pneumophila, Pseudomonas aeruginosa, Non-tuberculous Mycobacteria and their resulting infections has increased significantly in recent years.  The reported in-premise multi-drug resistant waterborne infections such as from Pseudomonas aeruginosa, P. putida, Klebsiella pneumoniae, […]

Multi-Drug Resistant Microorganisms In Your Drains Read More »

Thermostatic Mixing Valves & Water Hygiene

Authors: David Harper & Dr. Catherine Whapham Contamination of Thermostatic Mixer Valve (TMV) Taps In August 2022, Meda & Gentry from Frimley Park Hospital, published a letter in the Journal of Hospital Infection containing positive evidence of good water hygiene practice in action.  In 2018, following the persistent presence (despite remediation, cleaning, disinfection, retesting) of

Thermostatic Mixing Valves & Water Hygiene Read More »

Construction Concerns?

How well do we really understand the multiple factorial parameters that can influence Legionella, Pseudomonas, non-tuberculous mycobacteria, Stenotrophomonas and other waterborne pathogen survival and growth within our in-premise drinking water systems?  Certainly the design of a system and the different materials in the fluid pathway can have an impact, as can the chemical composition of

Construction Concerns? Read More »