Flagship home experiment
Erase the next chunk of your water bill.
Not someday. Not in theory. This cycle. WaterShortcut turns your bill, meter, and utility rules into a short home experiment so you can see whether your fastest savings are hiding in a toilet leak, a shower routine, irrigation timing, or a tier jump.
Educational estimates only — never a savings guarantee. No login, no upload required.
Why this is worth testing
Common household leaks can waste about 180 gallons a week on average, and fixing easy leaks can save about 10% on the water bill. Outdoor watering is even bigger in many homes: it averages over 30% of household use nationally and can be much higher in dry climates.
Water bills do not rise for just one reason. Sometimes usage climbs. Sometimes the unit price climbs because you crossed a higher tier. Sometimes sewer math does the damage. Sometimes a quiet leak runs all night. The sprint separates those causes, then helps you test the one most likely to matter in your home.
Why this showed up
EPA WaterSense publishes the leak statistics (about 10% of homes have leaks wasting 90+ gallons a day) and the outdoor-use share; the Water Research Foundation's residential end-uses studies show toilets, faucets, showers, clothes washers, and leaks dominate indoor use. Sources are listed at the bottom of this page.
How it works
We use your current bill to estimate what your next saved gallon is worth, then compare two days of home water use before and after the experiment. If your utility offers daily or hourly usage data, use that. If not, manual meter reads work too.
Before we recommend shower or irrigation changes, we help you test for silent flow overnight and dye-test toilets.
That is how you learn whether your bill was driven by a leak, timing, irrigation, or ordinary use.
One recent bill. Two meter or portal readings. Ten quiet minutes for a toilet dye test if we flag leak risk.
A daily usage target, an estimated dollar target, and a ranked next step built around your bill's actual pricing logic.
The sprint
Five short steps. Your entries stay in this browser (localStorage) — nothing is uploaded.
Step 1 — Set up from your bill
The marginal value of the next gallon depends on your utility's rules, not a national average. Grab your latest bill (or open your utility portal) and copy these numbers.
We can't tell your sewer rule from here — and we won't pretend to. One follow-up: on your bill, does the sewer line item change when your water usage changes?
Step 2 — Two-day baseline + the mandatory leak screen
Without a baseline you cannot prove the experiment worked. And before any behavior advice, we screen for silent leaks — a leaking home makes every habit tip look like a failure.
The quiet-house leak screen (required)
- Overnight meter check: at bedtime, make sure no water will run overnight (no laundry, no ice maker cycle if you can pause it, irrigation off). Write down the meter read. Read it again in the morning before anyone uses water.
- Toilet dye test: put dye or food coloring in each toilet tank, wait 5–10 minutes, don't flush, then check the bowl. Color in the bowl = the flapper is leaking.
Why this showed up
Utility leak protocols recommend comparing meter reads after a no-use period (some utilities say the meter should not move at all after two hours of no water use), and EPA WaterSense recommends the tank dye test for silent toilet leaks. About 10% of homes have leaks wasting 90 gallons or more per day — screening first keeps the experiment honest.
Step 3 — Pick your fastest path
Three quick context questions, then choose one branch. We'll recommend the branch your data points to, but it is your experiment.
Why this ranking
Leak evidence outranks everything (measured overnight flow beats any habit guess). Seasonal use plus irrigation points outdoors, where EPA says as much as 50% of water can be lost to wind, evaporation, and runoff. Tier proximity matters because increasing block rates make the next gallon cost more than the last. Winter-averaging windows matter because this month's use echoes into future sewer bills. Shower control is the default because it is measurable and fully in your control.
Step 4 — Run the 3–5 day experiment
Your daily gallon target is one billing unit spread across the days left in your cycle. The measured test runs 3–5 days: at least 3 days to beat day-to-day noise, capped at the days you have left.
Leak branch — you are in proof mode, not savings mode
- Dye-test every toilet tonight (dye in tank, wait 5–10 minutes, don't flush, check the bowl).
- Inspect visible drips: faucets, showerheads, the water heater relief line, under sinks.
- If the meter still moves with everything off, close the house shutoff valve and watch the meter: flow stops → the leak is indoors; flow continues and you have irrigation → check the irrigation line next; flow continues with both isolated → the service line is a utility/plumber conversation.
Shower branch — cut two minutes, count the gallons
- Cut every shower by about 2 minutes (a phone timer by the shower works).
- With a standard 2.5 gallons-per-minute showerhead that is roughly 5 gallons per shower; with a WaterSense 2.0 gpm head, about 4 gallons.
- Multiply by your household's showers per day and compare it to the daily target above — that tells you whether this branch alone can erase the unit before cycle close.
Outdoor branch — the summer hero
- Skip one watering day this week, and move remaining watering to early morning.
- Landscapes typically need about one inch of water per week including rain — a cheap rain gauge settles arguments.
- If you use a controller, check whether it is clock-based or weather-based: EPA says a WaterSense-labeled controller can cut irrigation use by up to 30%.
- Compare meter totals across the 3-day test — outdoor changes show up fast.
Threshold branch — the gallons that keep you under the line
- Your line: units-to-next-tier × gallons per unit = the gallons you can still use at the cheaper rate this cycle.
- Aim every change (shorter showers, one skipped watering day, delayed laundry) at staying under that line — those specific gallons are worth the next tier's price, not the current one.
- Watch the portal or meter daily; the win condition is closing the cycle below the tier line.
Winter sewer branch — this month matters more than it looks
- Hold indoor use down for the rest of the averaging window: fix running toilets now, run only full laundry/dishwasher loads, shorten showers.
- A winter leak or heavy indoor month echoes into months of future sewer bills where utilities average winter use — that is why this quiet month outranks flashier changes.
- After the window closes, verify the sewer average printed on the following bill.
Step 5 — What those gallons are worth
After 3–5 days on the branch, enter what actually happened. We compare experiment days to your baseline, project it to cycle close, and value it at your effective marginal rate — water plus sewer only where sewer is truly volumetric.
The math, if you'd rather run it by hand: (baseline daily average − experiment daily average) × days left in cycle = gallons removed; divide by gallons per unit for bill units (e.g., 0.86 units); multiply by your marginal water rate — and add the sewer rate per unit only when sewer is volumetric. Flat or capped sewer doesn't move with usage, and winter-averaged sewer shows up on future bills instead of this one.
Renting? Start with the moves you control.
We'll help you test for silent toilet leaks, overnight flow, shower time, and full-load habits first. If the evidence points to a building or service-line issue, you'll leave with cleaner notes for your landlord or maintenance request.
If your leak screen found overnight flow or a failed dye test, send this. It is stronger than "my bill seems high" because it gives maintenance observable evidence.