Measure irrigation leak output with practical garden planning inputs. Review pressure, hole size, runtime, and loss trends. Estimate waste, cost, and repair urgency with confidence.
| Leak Type | Pressure (psi) | Hole Diameter (mm) | Hours/Day | Estimated Flow (L/min) | Daily Loss (L) |
|---|---|---|---|---|---|
| Drip emitter crack | 20 | 1 | 2 | 0.15 | 18 |
| Small tubing puncture | 30 | 2 | 4 | 0.55 | 132 |
| Loose fitting seep | 25 | 1.5 | 3 | 0.31 | 55.8 |
| Valve edge leak | 40 | 3 | 1.5 | 1.28 | 115.2 |
This calculator uses an orifice style leak estimate. It treats the leak opening like a small outlet and estimates discharge from pressure and opening size.
Flow equation: Q = Cd × A × √(2P / ρ)
Where:
Q = flow rate in m³/s
Cd = discharge coefficient
A = leak hole area in m²
P = pressure in pascals
ρ = water density in kg/m³
The calculator converts the flow into liters per minute, then scales the loss by hours, days, and number of leaks for garden planning.
1. Enter the irrigation or garden water pressure in psi.
2. Add the estimated leak opening diameter in millimeters.
3. Enter how many hours per day the leak runs.
4. Set the number of days for the analysis period.
5. Keep the discharge coefficient default or adjust it.
6. Add water cost and leak count for a richer estimate.
7. Click the estimate button to view results above the form.
8. Use the graph, CSV export, and PDF export for reporting.
A leak flow estimate calculator helps gardeners measure hidden irrigation waste before it becomes expensive. Even a small puncture in tubing or a weak valve seal can release significant water over days.
This page is designed for practical garden planning. It estimates leak flow from pressure, opening diameter, runtime, and quantity of similar leaks. It also expands the result into daily, weekly, monthly, and annual water loss values.
Garden systems often run on schedules, so a leak may stay unnoticed for long periods. By converting leakage into liters and cost, this tool makes repair urgency easier to understand. It is useful for drip lines, hoses, fittings, emitters, and small valve leaks.
The included graph shows cumulative loss through the chosen analysis period. This makes it easier to explain waste to clients, teams, or property managers. CSV and PDF exports also support record keeping and maintenance reporting.
The estimate is based on a standard leak discharge approach. Real conditions may differ because of turbulence, pipe shape, worn fittings, partial blockages, or uneven pressure. Still, the calculator gives a strong planning estimate for garden maintenance decisions.
Use it when reviewing irrigation performance, comparing repair priorities, or estimating avoidable water loss after inspections. It is especially helpful when trying to justify quick maintenance on systems with recurring pressure leaks.
It estimates leak flow rate and water loss for garden irrigation systems. It also projects cost, period loss, and long term waste from repeated daily operation.
No. You can use it for drip lines, small hoses, fittings, emitters, valves, and similar garden watering leaks where pressure and opening size are reasonably known.
Higher pressure pushes more water through the same opening. That means even a tiny leak can waste much more water when the system runs at elevated pressure.
It is a correction factor used in the flow equation. It accounts for real leak behavior, because actual openings rarely discharge as perfectly as ideal openings.
No. They are engineering style estimates. Actual leakage can differ because of material shape, pressure fluctuation, debris, wear, and the true form of the leak opening.
Yes. Enter the number of similar leaks in the leak count field. The calculator multiplies the estimated single leak flow to show total system waste.
It returns flow in liters per minute and water loss in liters and cubic meters. It also provides cost when you enter a price per 1000 liters.
Use exports when you want maintenance records, client reports, inspection notes, or repair comparisons. They are useful for tracking waste and documenting recommended fixes.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.