Case Study

Marriott Cooling Tower

Installer

 

Nano Tek-On, LLC. (HydroFLOW distributor in Hawaii).

 

Customer

 

Marriott Koolina Beach Club, Oahu, Hawaii, USA. 

 

Application

 

500 Ton Cooling Tower.

 

Installed unit

 

HydroFLOW Custom 14” water conditioner on a cast iron pipe feeding the chillers. 

 

Success factors

 

  • Reduce chemical usage by up to 75% while keeping the cooling tower readings within acceptable parameters. 

 

  • Significantly reduce maintenance costs.

 

  • Reduce blow down water usage by up to 50%.

 

Results

 

  • Lime scale accumulation stopped as soon as HydroFLOW was installed.

 

  • Anti-scalant and Anti-corrosive chemicals were completely discontinued after 1.5 months.

 

  • Existing scale and biofilm deposits were gradually removed.

 

  • After reducing the biocide chemical by 75%, the total bacteria counts continued to be minimal.

 

  • Blow down was reduced by 50%. Note: Blow down can be reduced further with 10% side stream filtration.

 

  • Efficiency of chillers was maintained (no scale and biofilm accumulation in chiller tubes).

 

  • One-year Return on Investment (ROI). One Year Cost Savings Analysis.

 

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