Water and Sewer Bill Cost Reduction Calculator
Estimate Your Water and Sewer Bill Cost Reduction Without Reducing Water Usage
Pick your building type, meter size, and schedule, and the calculator models how water moves through your meter across a typical day, then estimates your bill reduction, payback, and 5-year savings. The FCD (Flow Conditioning Device) does not reduce actual water usage. The FCD is designed to reduce billed water and sewer cost by holding pressure up through the meter during demand surges from its position immediately after the meter — with far less gas and vapor counted as water. FCD does not restrict or reduce water consumption.
Important: This calculator estimates water bill cost reduction only. It does not estimate water usage reduction, consumption reduction, irrigation reduction, cooling tower reduction, or facility water-demand reduction.
Direct answer: The Water & Sewer Savings Calculator estimates how much of your water and sewer bill comes from meter over-registration, and how much correcting it could save. It models how water moves through your meter across a typical day for your building type, estimates the velocity at your meter hour by hour, and applies the result to the usage-based part of your bill. It estimates billed cost only: the FCD corrects what the meter records and doesn’t reduce the water your building uses. Documented installations show up to a 30% reduction in water and sewer costs.
Tell Us About Your Building
We’ll model how water moves through your meter across a typical day, then estimate when the Flow Conditioning Device (FCD) is likely to reduce your bill the most, and when it does very little.
Operating Schedule (optional)
Your 24-Hour Flow Profile
Each bar is one hour of a typical day. Taller bars mean more water through the meter. Darker green means faster flow and a bigger pressure drop inside the meter, which is when the FCD is expected to help most.
Water through your meter, hour by hour
Your Estimated Bill Reduction
The FCD does not reduce the water your building uses. Installed directly after the meter, it holds pressure up through the meter during demand surges, so far less gas and vapor form and are counted as water. These figures estimate how much of your current metered volume may be that extra reading.
| Time of Day | Hours | Share of Daily Water | Estimated Savings Rate | Extra Gallons Read / Month |
|---|
How your estimate compares to documented results (typically up to 30%)
Flow conditions at your busiest hour
Estimated investment & return
Your Bill Reduction Report
Enter your name and email to download your report as a PDF. A copy is sent to Water Flow Innovations. We’ll contact you only if you check the box below, and we don’t share your information.
Get your report
How the Calculator Works
Over-registration happens during demand surges, when water speeds up through the meter, pressure inside it drops, and gas and vapor form and are counted as water. So the calculator looks at when your building pulls water, not just how much.
Your 24-hour pattern
Your building type sets a typical daily water pattern. Your schedule, operating days, and peak periods fine-tune it to how your site actually runs.
Velocity at your meter
Your meter size, meter type, and pressure determine how fast water moves through the meter each hour. Faster flow means more over-registration.
Your estimated reduction
The hourly results are applied to your usage charges, with fixed charges left out. Estimates are capped at 30% and calibrated to documented installation results.
Savings Calculator: Common Questions
How accurate is the calculator’s estimate?
It’s a planning estimate. The calculator models a typical 24-hour water pattern for your building type and schedule, estimates the velocity through your meter each hour, and applies that to your usage charges. Results are capped at 30% to match the documented range: installations show up to a 30% reduction in water and sewer costs, and the middle result is about 16%. A free bill review confirms the estimate for your specific building.
Why does my building type matter?
Over-registration comes from demand surges, not from total water use. A hospital, a hotel, a food plant, and an office building pull water through the meter on very different daily patterns, with different peaks. The building type sets that pattern, and you can adjust the schedule and add your own peak periods to match how your site actually runs.
What if I don’t know my meter size?
Choose "Don’t know" and the calculator estimates a typical meter size from your building’s peak flow. For a more accurate result, check the size printed on the meter itself or listed on your water bill.
Does the FCD reduce the water my building uses?
No. The FCD corrects what the meter records; it doesn’t reduce the water your building uses. Installed immediately after the meter, it holds pressure up through the meter during demand surges, so far less gas and vapor form and are counted as water. Your billed water and sewer cost goes down, while your actual water use stays the same.
Why are fixed charges left out of the estimate?
Meter, service, and base fees stay the same no matter how much the meter reads, so correcting the meter reading doesn’t change them. The calculator applies the estimated reduction only to the usage-based part of your water and sewer bill.
What happens when I download the report?
Your 3-page PDF report downloads, a copy goes to Water Flow Innovations, and you can choose to have a copy emailed to you. We only contact you if you check the box asking for more information; then we’ll contact you to look at your actual bills, meter, pipe size, pressure, and PRV setup before recommending anything. There’s no obligation.
More Free Tools
Each tool answers a different question about the same correctable problem: a meter reading more than your building received.
NOI & Property Value Calculator
What your savings add to net operating income and property value at your cap rate.
See property value ›Meter Size & Your Bill
Compare meter sizes side by side, with and without the FCD, and find your lowest-bill option.
Compare meter sizes ›Over-Reading Scorecard
Seven quick questions, about a minute. See if your facility matches the over-registration profile.
Take the scorecard ›Sewer Double-Impact Calculator
See how much of your sewer charge comes from the same over-read meter.
Calculate sewer impact ›Want Your Exact Number?
A free savings analysis reviews your actual bills, meter size, pipe size, pressure, and PRV setup, and confirms your savings range before you commit to anything.