Toilet Information | Santa Clara Valley Water
Water Conservation
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Toilet Information


What do I need to know before I purchase an efficient toilet? [PDF]

What are the most efficient toilets on the market?

Premium high-efficiency toilets (HETs) flush effectively with 1.1 gallons per flush or less and can be found at select retailers [XLSX] as well as other retailers since this list was created and online (No double-flushing is required for these toilets in standardized conditions).

  • All Premium HETs sold in California can be downloaded here [XLS or PDF].
  • To easily search for efficient toilets, use the search feature at Maximum Performance Testing and select for “MaP PREMIUM Rated” toilets as well as any other features you may need (a screenshot of the search fields is provided below). Maximum Performance provides additional resources and assistance to help you enter the criteria and features that YOU are looking for in a new toilet before going to the store.
MaP Search to help find Premium HETs

What can I do with my old toilet? [PDF]

Found a leak and need to replace a toilet flapper? Click here.

Need A Plumber? 

  • Green Plumber® have been trained in home water-efficient products, water conservation, water sustainability, solar water heating, as well as other emerging products and technologies.
  • A licensed Green Plumber® can assist you in determining the most efficient products and appliances for your current and future needs – helping you to develop a staged plan for reducing your water and energy costs while protecting the resources of the planet. For more information, and a list of certified plumbers, go to

QUESTIONS? Call the Water Conservation Hotline at (408) 630-2554 or email us at [email protected]