Plumbing Percolation Rate Calculator
Calibrate actual timed infiltration-level drops with explicit mm→cm rate and pooled exposure; no automatic soil classification or septic permit.
Description
A timed percolation observation measures minutes per unit water-level drop.
A timed percolation observation measures minutes per unit water-level drop. Pooled exposure differs from averaging individual rates.1
The returned values include Observed percolation minutes per cm, Pooled percolation minutes per cm. The How section below explains the calculation, input rules and interpretation.
When to use Plumbing Percolation Rate Calculator
Use Plumbing Percolation Rate Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No soil classification, loading correlation or septic permit is determined.
Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
How to use Plumbing Percolation Rate Calculator and understand its results
- Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
- Enter observedWaterLevelDropsMm, observedElapsedMinutes using the field table and calculation rules, then run the tool.
- Read observedPercolationMinutesPerCm, pooledPercolationMinutesPerCm. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| observedWaterLevelDropsMm | Observed water level drops mm | list of number | Required |
| observedElapsedMinutes | Observed elapsed minutes | list of number | Required |
Enter aligned nonempty positive drops in millimeters and positive elapsed minutes. Return individual and pooled minutes/cm.
rate_i=10×minutes_i/dropMm_i; pooled=10sum(minutes)/sum(dropMm) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| observedPercolationMinutesPerCm | Observed percolation minutes per cm | list of number |
| pooledPercolationMinutesPerCm | Pooled percolation minutes per cm | number |
{
"input": {
"observedWaterLevelDropsMm": [
20,
30
],
"observedElapsedMinutes": [
10,
30
]
},
"output": {
"observedPercolationMinutesPerCm": [
5,
10
],
"pooledPercolationMinutesPerCm": 8
}
}Limitations and assumptions
No soil classification, loading correlation or septic permit is determined.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Plumbing Septic Percolation Area Calculator: A percolation result only maps to loading through a justified local calibration. Interpolation must stay within that supplied curve. For a complementary task, use Plumbing Septic Drain Field Area Calculator: A drain-field area budget divides design wastewater by verified soil loading. An extra replacement reserve increases total land area.
References
-
Plumbing Percolation Rate Calculator — tool.io
Similar or alternative tools
- Plumbing Septic Percolation Area Calculator
A percolation result only maps to loading through a justified local calibration. Interpolation must stay within that supplied curve.
- Plumbing Septic Drain Field Area Calculator
A drain-field area budget divides design wastewater by verified soil loading. An extra replacement reserve increases total land area.