Hard facts – new Icom guide to water quality

An estimated half of all commercial hot-water systems have operational problems because of limescale, says Sentinel Commercial’s Chris Shelton, who believes Icom’s new guide can rectify this

Water ways – specifying soil and drainage pipes

Is inertia holding us back when it comes to material selection for key products, such as drainage pipes and fittings? Geberit’s Jonathan Briafield weighs up the benefits of four materials

Minimising risk of legionella in domestic water services

Good engineering design and client-side control management are key to the successful containment of legionella bacteria. Aecom’s Richard Beattie, Arup’s Damien Kane and Paul Nolan, of Paul Nolan Water Hygiene, address legionella risk in domestic water services

Testing the water – tackling corrosion in pipework

Unseen corrosion in pipework can have a huge effect on the efficiency of heating and cooling systems. Continual monitoring of water quality helps identify issues at an early stage and helps maximise HVAC performance, says Hevasure’s Steve Munn

Thermal expansion and grooved pipe-joining systems

A grooved pipe-joining system is one method of accommodating thermal expansion and contraction in HVAC systems. Victaulic’s Larry Thau explains the technique’s design benefits and mechanical advantages

The final word – modelling fluid flows

Past CIBSE president John Swaffield died before he was able to finish his second work on modelling fluid flows in building drainage systems. Michael Gormley, who helped complete the book, explains why the author’s final contribution to the industry is an essential text