Three instances when inspection is mandatory
- Upon completion of new constructions (acceptance control according to NEN 9200 (Dutch standard — not automatically applicable as UK or US law)).
- Periodically: generally annual visual inspections + an in-depth inspection every 5 years.
- After incidents or visible damage — immediately and with a documented report.
What does an 'in-depth' inspection entail?
An in-depth inspection goes beyond visual observation. This includes:
- Random disassembly of bolts and nuts.
- Both visual and light mechanical testing for crack formation.
- Documentation of photos, material certificates, and inspection dates.
- Written advice on action points + timelines.
The biggest mistake: relying solely on annual visual inspections
Stress corrosion is by definition invisible until just before failure. An annual visual check does not catch this. Yet, in many natatoriums, this is the standard procedure — a direct legal and safety risk.
Always combine visual inspections with periodic material checks and a centralized compliance dossier. The latter is exactly where PoolFIX helps.
