Cooling Towers

Get rebates for making Water Wise choices.

Up to $1,000 rebate available.

Cooling towers are used in commercial buildings to remove the heat generated by computers, lights, people, and more. This process of removing heat requires a significant amount of water. As part of an effort to reduce potable water use, Tampa Bay Water Wise is offering rebates for technology or treatments that increase the cycles of concentration (COC) in cooling towers from less than 3 to at least 6 COC’s or more. This increase in the COC’s will save water and will continue to keep a focus on public health (such as reduced legionella potential).

Eligibility Requirements

  • Applicant must be an existing potable water utility customer of the city of Tampa, city of St. Petersburg, city of New Port Richey, Pinellas County, Pasco County or Hillsborough County.
  • Existing property must be using an operable, potable water-based cooling tower with at least a 500-ton capacity, and with current COC at 3 or less.
  • Cooling tower units must have the following hardware, either before or after technology/treatment is applied. Proof of these items are required though copies of receipts if they are purchased, or by photo/visual inspection by Tampa Bay Water Wise if they are already in place before technology/treatment is applied.
    • • Units shall have at least 2 water submeters to measure makeup water and blowdown water.
    • • Units shall have a conductivity sensor and controller installed for conductivity monitoring.
  • Technology/treatment applied must result in 6 COCs or more. Any type of technology/treatment is allowable with demonstrated water savings, and may be one of the following:
    • • Water treatment or cooling tower technology
    • • Recommissioning
    • • New, replacement cooling tower
    • • Pre-approved technologies:
    • Technology Type  Proprietary (y/n) Vendor Name  3rd Party Testing
       Advanced Oxidation Process  Yes  Silver Bullet  National Renewal Laboratory. (2020). GSA Guidance–Alternative Water Treatment Systems for Cooling Towers
       Chemical Scale Inhibition  Yes  Terlyn
       Electrochemical Water Treatment  Yes  Dynamic Water Technologies
       Salt-based System  Yes  WCTI

      To add your technology/treatment to the pre-approved list, an independent, third party verification is required (such as through a university, national lab, or other entity). Verification will be determined on a case by case basis.

Application Requirements

  • Cooling Tower Rebate Application – Download the Cooling Tower Rebate Application and email the application and any additional documentation to: If you have questions you may contact Tampa Bay Water Wise Demand Management at (727) 791-2323.
  • Receipts for submeters and conductivity sensor/controller if they were purchased, otherwise photos or visual inspection by Tampa bay Water Wise is required.
  • Receipts for other reimbursable expenses include Programmable Logic Controllers (PLCs) and labor, only after receipts/proof of submeters and conductivity sensors are provided.
  • Applicant agrees to Customer Agreement (see below)

Customer Agreement

View Agreement

  • Applicant must be an existing potable water utility customer of the city of Tampa, city of St. Petersburg, city of New Port Richey, Pinellas County, Pasco County or Hillsborough County.
  • Tampa Bay Water Wise may request access to submeter and conductivity data up to five years post-rebate, in order to track savings.
  • A written assurance for three years post-rebate that the cooling tower will not be converted to an alternative water source, such as reclaimed or well water.
  • A written assurance that COC’s will remain at or above 6 for at least three years (monthly, yearly and cumulatively) in all contractual agreements with the owner.
  • Tampa Bay Water Wise reserves the right to verify upgrades. If the rebate inspector is unable to conduct a scheduled inspection to verify the upgrade the rebate check may not be issued.
  • Applicant must allow Tampa Bay Water Wise or its third-party inspector access to review the completed installation for up to two (2) years after a rebate check has been paid in order to evaluate the effectiveness of the program.
  • Tampa Bay Water Wise reserves the right to inspect all submissions to determine eligibility. Fraudulent requests for rebates or duplicate submissions will be denied. Any paid rebates will be subject to repayment to Tampa Bay Water Wise if fraudulent activity is determined.
  • Applications submitted with missing or incomplete information will be subject to processing delays and/or denial of the rebate request.
  • Rebate applications submitted may take up to 30 days to be processed. Rebate approval is at the sole discretion of Tampa Bay Water Wise, and submission of a rebate application does not guarantee rebate approval.
  • In order to receive a rebate, applicants must fulfill application requirements, meet rebate criteria, and accept the customer agreement.
  • Rebate(s) will be issued as a check made payable to the account holder or property owner. Checks will not be issued to third parties or contractors, unless designated by the property owner with a general release form here.
  • The rebate issued cannot exceed the purchase price of the installed technology meters or other hardware installed as required.
  • Rebates are offered on new products, technologies or treatments only. Used or refurbished items are not eligible for a rebate.