Insights & articles

Field notes from the industry

Case studies, technical commentary and regulation updates for plumbers, M&E engineers and compliance officers.

Insight

Missing test cocks, inverted relief valves, and isolation that makes annual AIM testing impossible.

Insight

Closed heating and chilled circuits are Category 4. A double check on the filling point is not enough.

Insight

When a mechanical device cannot replace a Type A air gap — and how to dimension the weir.

Insight

Three common installations where specifiers under-specify protection — and what to fit instead.

Insight

How a live-site maintenance window was used to bring HU outlets into AIM.

Insight

The proposed amendments to Schedule 2 and how they affect existing Category 4 installations.

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