PAY ON SAND - All ten victims were approachable and stable, says a police spokesman. Three of them had on arrival nausea and respiratory irritation.Everyone was allowed to return home Tuesday, said the spokesman. The accident happened in pool with chlorine Vital in Kerkstraat in the Brabant place. This is a private swimming pool, a sauna and a solarium houses. Nine ambulances were pulled because of the accident. How the gas has been released, it is not yet known.