WTS | First Defense provided site visit to a large VA hospital to investigate the cooling towers not able to blow down. Observation of the towers showed deposits in the basin that appeared to be sand. It was also revealed that water tower facing sweeping system of towers not working properly. Bacteria in the tower was suspected.
WTS | First Defense used lab analysis to determine the deposits were calcium and magnesium carbonate. Chemistry results showed that cooling tower chemicals were out of specification. Automatic chemical feed rack rates were adjusted to allow proper chemical feed. Blow down pipe was relocated to the side to prevent clogging. Dip slide analysis confirmed bacteria therefore biocide intervals were adjusted to remove the bacteria. Tower sweep system was restored.
Using chemistry and lab analysis completed by skilled trained engineering technician provided a proper method of procedure that met all state and local specifications. Cooling Towers are clean and without bacteria ensuring 100% operational readiness.