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Save Water and Money with CWLP’s High-Efficiency Toilet Rebate

January 6, 2026


If your home still has an older toilet, there’s a good chance it’s quietly wasting thousands of gallons of water each year. The good news? CWLP water customers can upgrade to a modern, high-efficiency toilet and earn a $50 rebate, all while saving water and lowering your monthly bill.

Why Upgrade to a High-Efficiency Toilet?
By replacing a 20- to 30-year-old toilet with a newer model, you could save nearly 3,000 gallons of water per year for every person who regularly uses that toilet.
If upgrading to a WaterSense®-labeled high-efficiency (HE) toilet, the savings increase even more. These toilets use 1.28 gallons or less per flush, saving an additional 600–1,100 gallons per year per person, without sacrificing performance.

Powerful Performance, Less Water
High efficiency doesn’t mean low performance. Today’s WaterSense-labeled toilets are designed to flush effectively using modern technology. All WaterSense-labeled toilets meet strict criteria for efficiency and effectiveness. Popular options include:
  • Dual-flush toilets: Choose a lighter flush for liquids and a full flush for solids.
  • Pressure-assist toilets: Use pressurized air for a fast, powerful flush (with a noticeable “whoosh” sound).
  • Single-flush gravity models: Improved designs that deliver reliable performance with less water.
How to Get Your $50 CWLP Rebate?
CWLP water customers who replace an existing older toilet with a qualifying HE toilet can apply for a $50 rebate (new construction does not qualify).

Steps to apply:
  1. Purchase a qualifying WaterSense®-labeled high-efficiency toilet.
  2. Find and complete the HE Toilet Rebate Application here.  
  3. Submit the application with your purchase receipt within 60 days by mail or in person to:
CWLP Energy Services Office
1008 E. Miller Street
Springfield, IL 62702

Need help submitting the form electronically?
  • If using Google Chrome, you’ll need the Adobe extension. You may also:
  • Open the form in Internet Explorer
  • Email it to nrgxprts@cwlp.com
  • Print and mail it to the address above
One rebate is allowed per water account. Rebates are applied as credit to your CWLP bill. Please allow up to 45 days for processing.

If you have any questions or need more information, you can contact the CWLP Energy Services Office at 217.789.2070 or email nrgxprts@cwlp.com