# One Toilet Upgrade, 26,000 Gallons Saved: A Longmont Field Note > Aim Dynamics replaced an old 3.2 GPF toilet with a 0.8 GPF high-efficiency fixture through Longmont's Sustainable Business Program. Here is the simple water-savings math, the one-hour installation story, and the video. - Source: https://energyzedworld.com/energy-posts/aim-dynamics-toilet-upgrade-water-savings-longmont - Publication: EnergyzedWorld (https://energyzedworld.com) - Publisher: Eenovators Limited — https://eenovators.com - Category: Energy Posts - Published: 2026-08-31 - JSON: https://energyzedworld.com/api/posts/energy-posts/aim-dynamics-toilet-upgrade-water-savings-longmont.json ## TL;DR - Aim Dynamics replaced an older 3.2 gallons-per-flush toilet with a 0.8 GPF high-efficiency fixture after qualifying for Bronze Certification in Longmont's Sustainable Business Program. - The savings are simple: 3.2 GPF minus 0.8 GPF equals 2.4 gallons saved every flush. - At 10 people using the restroom 2-3 times per day, that is 48-72 gallons saved per day, or about 17,520-26,280 gallons per year. - The installation was a practical in-and-out job: Jarrett completed the work in about one hour per toilet. - Small facility upgrades matter in Colorado because water supply depends heavily on snowmelt, mountain runoff, reservoirs and drought-prone climate patterns. --- Some sustainability projects are big capital plans. Others are almost comically ordinary: a box arrives, the water valve is closed, the old fixture comes out, a new fixture goes in, and every flush uses less water from that day forward. That was the story at Aim Dynamics in Longmont, Colorado. After qualifying for Bronze Certification through the [City of Longmont Sustainable Business Program](https://longmontcolorado.gov/sustainability/sustainable-business/), Aim Dynamics received high-efficiency toilet fixtures and replaced an older **3.2 gallons-per-flush** toilet with a **0.8 gallons-per-flush** model. Watch the short video here: [Aim Dynamics toilet water-savings field story on YouTube](https://www.youtube.com/watch?v=LpSiZdfcmNc). ![The boxed Niagara high-efficiency toilet after delivery to the Aim Dynamics office](/images/posts/energy-posts/aim-dynamics-toilet-water-savings/received-niagara-toilet.jpg) *The upgrade began with the most practical sustainability moment possible: the new high-efficiency toilet arriving in a box.* ## The savings math The calculation is deliberately simple: | Item | Calculation | Result | |---|---:|---:| | Water saved per flush | 3.2 GPF - 0.8 GPF | **2.4 gallons** | | Daily use assumption | 10 people x 2-3 flushes | **20-30 flushes/day** | | Daily water savings | 20-30 x 2.4 gallons | **48-72 gallons/day** | | Annual water savings | 48-72 x 365 | **17,520-26,280 gallons/year** | That is the point: a fixture change that takes roughly an hour can remove tens of thousands of gallons of unnecessary annual water use from a small office scenario. This is not a metered utility-bill baseline. It is a transparent fixture-rating estimate. But for planning and education, it is a powerful little number. ![The older 3.2 gallons-per-flush toilet before removal](/images/posts/energy-posts/aim-dynamics-toilet-water-savings/old-3-2-gpf-flush.jpg) *Before: the older 3.2 GPF toilet. Every flush used four times the water of the new 0.8 GPF fixture.* ## Why this matters in Colorado Colorado water is not abstract. Longmont's drinking-water supply is surface water from streams, lakes and reservoirs fed by snowmelt and rainfall in the St. Vrain watershed, with additional west-slope Colorado and Fraser River sources. The state also has a dry, drought-prone climate; Colorado averages about 15 inches of precipitation annually, and large parts of the state receive less than 10 inches. That makes indoor water efficiency a resilience issue, not just a green badge. Toilets are also one of the most visible places to start. The U.S. EPA WaterSense program notes that toilets account for nearly 30% of average household indoor water use. A commercial office restroom is not a household, but the lesson carries: if a fixture is used many times per day, each flush matters. ## The installation story Jarrett handled the installation, and he made the point better than any slide deck could: this is an in-and-out upgrade. Close the valve. Pull the old fixture. Prep the flange. Set the new one. Test the flush. About one hour per toilet. ![Jarrett preparing the floor flange before setting the new fixture](/images/posts/energy-posts/aim-dynamics-toilet-water-savings/flange-prep-installation.jpg) *The middle of the job: old fixture out, flange exposed, new wax ring ready.* ![The newly installed 0.8 gallons-per-flush toilet](/images/posts/energy-posts/aim-dynamics-toilet-water-savings/new-installed-0-8-gpf-toilet.jpg) *After: the 0.8 GPF fixture installed and ready for the first real flush.* ## The bigger lesson The best sustainability stories are not always glamorous. Sometimes the win is a small operational change that is easy to explain, easy to verify and easy for another business to copy. For Aim Dynamics, this project turned recognition into action: - Bronze Certification from Longmont's Sustainable Business Program - A practical fixture upgrade - A documented before-and-after story - A conservative water-savings estimate - A short video that other businesses can learn from ![Chris from Aim Dynamics and installer Jarrett after the completed toilet upgrade](/images/posts/energy-posts/aim-dynamics-toilet-water-savings/chris-jarrett-completion.jpg) *Done: Chris from Aim Dynamics with Jarrett after a smooth one-hour installation.* Small changes add up. Measure it. Make the change. Save every flush. ## Sources - [City of Longmont Sustainable Business Program](https://longmontcolorado.gov/sustainability/sustainable-business/) - [City of Longmont water resources and supply](https://longmontcolorado.gov/water/water-resources-supply/) - [Colorado General Assembly water-policy handbook](https://content.leg.colorado.gov/sites/default/files/2017state_water_policy_handbook_update_to_print.pdf) - [Colorado General Assembly drought overview](https://content.leg.colorado.gov/publications/drought-colorado) - [EPA WaterSense residential toilets](https://www.epa.gov/watersense/residential-toilets) ## Frequently asked questions ### How much water does a 3.2 GPF to 0.8 GPF toilet replacement save? The fixture-rating difference is 2.4 gallons per flush. At 20-30 flushes per day, that equals 48-72 gallons saved per day, or 17,520-26,280 gallons per year. ### Is this a measured utility-bill saving? No. This field note uses fixture ratings and a stated usage assumption. It does not claim a metered water baseline or a dollar saving. ### Why does this matter in Longmont and Colorado? Longmont's drinking-water supply is surface water tied to the St. Vrain watershed, reservoirs, snowmelt and rainfall. Colorado also has a dry, drought-prone climate, so reducing routine indoor water waste is a practical resilience measure. ### How long did the installation take? Jarrett completed the installation in about one hour per toilet, which made it a simple in-and-out facility upgrade. --- Content © Eenovators Limited. Quote with attribution and a link to https://energyzedworld.com/energy-posts/aim-dynamics-toilet-upgrade-water-savings-longmont. For energy audits, monitoring deployments, M&V or BPS compliance, contact info@eenovators.com or https://eenovators.com/contact.