Backflow Assembly Testing
Keep the property's assembly test separate from restroom retrofit planning.
Commercial fixture upgrades
27 Million Commercial Toilets: WhyYour Restroom Inventory Matters
A national fixture estimate is a reason to inspect your records, not a promise of savings. Start with the equipment actually installed in your building.
Primary keyword: commercial toilet replacement
Nearly 27 millionOffice owners, retail operators, facility managersUnited States
Key Takeaways
- Document installed equipment before estimating the value of a restroom retrofit.
- Compare complete, compatible fixture specifications rather than choosing by a flush-volume number alone.
- Restroom efficiency work and backflow assembly testing are separate maintenance responsibilities.
A Big Number, a Small First Step
EPA WaterSense estimates that nearly 27 million flushometer-valve toilets are installed across the United States. Its commercial-toilet page identifies roughly 7 million older units with flush volumes of 3 to 7 gallons. Those estimates make a strong case for knowing what is installed in your building before approving another like-for-like replacement.
They do not establish that your restrooms are inefficient. The page does not identify a measurement year for the installed-base estimate, so treat it as EPA's published national context, not a new 2026 count. Your next step is a fixture inventory, not a savings forecast copied from a national example.
Make the Contractor's First Visit More Useful
Create a simple record for each restroom before requesting a retrofit proposal. Use visible labels, existing manuals, and maintenance records. Leave dismantling, valve adjustment, and diagnosis to a qualified plumbing professional. Where a detail is unknown, mark it unknown instead of filling the gap with an assumption.
- Record the restroom location and the number of fixtures included in the proposed work.
- Photograph visible manufacturer and model markings on both the bowl and the flushometer valve.
- Collect documented flush-volume information and any previous repair or replacement invoices.
- List recurring complaints, observed running water, and fixtures that are temporarily out of service.
- Note access restrictions, occupancy schedules, and who can authorize a shutdown.
The Lowest Number Is Not the Whole Specification
EPA describes WaterSense-labeled flushometer-valve toilets as using no more than 1.28 gallons per flush, with a minimum of 1.0 gallon. The lower boundary addresses adequate flow through the plumbing system. EPA advises facility managers to consult a plumbing engineer when they have questions about suitability in their buildings.
Ask the person preparing your proposal to identify the complete proposed equipment, compatibility considerations, installation scope, and maintenance documentation. A product label is useful evidence, but it is not a substitute for reviewing your building. Keep any estimated water or cost savings tied to stated assumptions about existing equipment and actual use.
Keep the Backflow File Separate
A restroom upgrade does not tell you whether the property's testable backflow assembly has passed its required test. Give the plumbing contractor the fixture scope, and keep the assembly's identification, utility notices, test reports, and corrective-work records in a separate maintenance file.
If planned work affects a protected water connection, ask the serving water supplier and qualified professionals what review or follow-up applies. Do not assume that installing an efficient toilet changes the testing obligations for a separate assembly. Backflow Test Pros can help with backflow testing and assembly repair or replacement; discuss restroom retrofit design with a qualified plumbing contractor or engineer.
Source and Scope
Source: U.S. EPA WaterSense, Commercial Toilets, https://www.epa.gov/watersense/commercial-toilets, checked September 23, 2026. Installed-base figures correspond to BFTP research workbook Stats Repository row 73; labeled flush-volume figures correspond to row 74. The page was last updated March 31, 2026. No local fixture count, guaranteed savings, or property-specific replacement recommendation is inferred.
Related Service And Compliance Pages
These links are chosen from the existing service catalog so the article can hand readers off to the right next step without pretending the blog post itself is the service page.