
In busy restrooms, waterless (“zero-flush”) urinals usually pay for themselves fast (often within about 6 months), because you stop buying water every time someone uses the fixture. Exact payback depends on traffic, your local water rates, and the model you choose. (Massachusetts’ state program, citing the U.S. Army Corps of Engineers, reports simple paybacks in that ½–3-year range.)
What Counts as ROI
When facilities teams look at ROI for waterless urinals, they’re adding up a few simple things: the direct savings from water and wastewater you no longer pay for; the indirect savings from fewer leak calls and zero flush-valve maintenance; and the upfront costs of the fixtures and installation. A helpful national benchmark for the direct part is the EPA WaterSense 2023 commercial average of $12.42 per 1,000 gallons for combined water + wastewater.
Why the Savings Add Up
By law, the federal standard for urinals is 1.0 gallon per flush (gpf); high-efficiency units are 0.5 gpf or less (EPA WaterSense). Waterless urinals use 0 gpf. That means every use of a conventional 1.0-gpf urinal costs you water and sewer; every use of a waterless urinal does not. Over the course of a day, a month, or a school season, the gallons you stop buying stack up quickly.
To see it plainly, do a quick, back-of-the-envelope calc:
- Example: Replace a 1.0-gpf urinal used 75 times per day.
Gallons saved per year ≈ 75 × 1.0 × 365 = 27,375 gallons.
At the national average $12.42/1,000 gal, that’s roughly $340/year in direct water savings for one urinal. If the same restroom sees 200 uses/day, the math jumps to ~73,000 gallons/year and about $907/year saved—again, per urinal. Many retrofits replace older fixtures that used more than 1.0 gpf, which only makes the savings larger. For a sense of scale, a state evaluation documented a stadium saving ~22,000 gallons per game after switching to waterless fixtures.
What It Costs Upfront (And Year to Year)
From Aqua Pro’s catalog of PurLeve / ZeroFlush fixtures, common price points you’ll see range from $500 – $1,000 on average.
Installation is typically simpler than a standard urinal because there’s no water line to connect; Aqua Pro’s install guide walks through the steps, and $300–$800 per unit is a reasonable planning estimate for install labor in typical conditions.
For ongoing service, there are different methods offered depending on need & usage:
- ZeroFlush EnviroSeal™ Insert Kit: rated up to ~45,000 uses before change-out
- ZeroFlush Liquid Odor Barrier Kit: two-pack, with ~15,000 uses per insert (about 30,000 uses per two-pack)
In a moderate-traffic restroom (say ~27,000 uses/year), many sites change EnviroSeal roughly once a year or the liquid-barrier two-pack about once per year.
What Payback Really Looks Like
Let’s put the pieces together for two common scenarios.
Moderate Traffic (75 uses/day, replacing 1.0 gpf):
Direct savings ≈ $340/year. Plan roughly $99/year for a liquid-barrier two-pack (or $87.70 for EnviroSeal). Net $241–$252/year per urinal. Using a $499 ZF501 and a middle-of-the-road $300 install, total upfront ≈ $799. Simple payback ~3.1–3.3 years—before you count avoided flush-valve repairs.
High Traffic (200 uses/day, replacing 1.0 gpf):
Direct savings ≈ $907/year. Even with more frequent insert changes, the math typically lands around a one-to-two-year payback, and often faster in schools, airports, and stadiums. That aligns with third-party reviews reporting ½–3 years in the field.
* note, these estimates are based on price points at the time of writing this. Prices may have changed or be slightly different.
Risks and How to Avoid Them
Most offices, schools, airports, and event venues report good outcomes. Where projects stumble, the pattern is familiar: high-abuse settings (like dorms or prisons) with infrequent service. The fix is practical: set a change-out cadence tied to real usage, use the recommended cleaning products, and keep a short service log. For retrofits, confirm there’s a reasonable drain slope and cleanliness before you hang the new fixture; a quick line check during install pays dividends later.
A Quick Way to Decide
If you’re modeling ROI for your building, jot down four numbers: uses per fixture, days open per year, your combined water + sewer rate (swap in your local number for the WaterSense average of $12.42/1,000 gal), and your fixture/insert choice. From there, the math is straightforward—and easy to communicate to finance. If you’d rather start small, convert one bank of fixtures for a quarter and track uses and service intervals; you’ll have clean data to scale with confidence.
Its An Easy Decision to Make
Zero-flush urinals don’t just save water; they clean up your maintenance list and pay back quickly in high-traffic settings. With purchase prices commonly in the $500 – $1000 range and simple, predictable service parts, most facilities see a clear, defensible ROI, plus tens of thousands of gallons saved per fixture every year. Aqua Pro is an authorized reseller of PurLeve / ZeroFlush fixtures and accessories, so if you want help selecting models or estimating your site-specific payback, we can point you to the right options and get you pricing for your exact setup.
















