Leisure

Applications

Leisure

Gyms, spas, pools, sports facilities and public changing areas. Showers, hose points and chemical dosing.

Leisure and pool plant risks

Pool dosing, spa fill and changing-area hose points.

Risk reference

Connection type	BS EN 1717 category	Protection method	Notes
Pool / spa dosing	5	Type A air gap	Chemical concentrate is Category 5
Hose union tap	3–5	RPZ or air gap	Depends on downstream use

Gyms, spas, pools, sports facilities and public changing areas. Showers, hose points and chemical dosing.

Connection types, BS EN 1717 category and the minimum protection method.

Connection type	BS EN 1717 category	Protection method	Notes
Pool / spa dosing	5	Type A air gap	Chemical concentrate is Category 5
Hose union tap	3–5	RPZ or air gap	Depends on downstream use

Regulation guide

Tools & calculators

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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.