Plumbing Catch Basin Size Calculator
Budget measured catch-basin inlet rate, caller retention and independently reserved sediment volume; no inferred inlet-grate capture, universal civil design or overflow safety.
Description
Catch-basin volume combines a retention budget with reserved sediment storage.
Catch-basin volume combines a retention budget with reserved sediment storage. Usable fraction converts that budget to nominal volume.1
The returned values include Required catch basin usable liters, Required nominal catch basin liters. The How section below explains the calculation, input rules and interpretation.
When to use Plumbing Catch Basin Size Calculator
Use Plumbing Catch Basin Size Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No grate-capture estimate, universal civil-design rule or overflow safety is supplied.
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 Catch Basin Size 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 observedCatchBasinInflowLitersSecond, callerRetentionSeconds, observedSedimentReservedLiters, callerUsableVolumeFraction using the field table and calculation rules, then run the tool.
- Read requiredCatchBasinUsableLiters, requiredNominalCatchBasinLiters. 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 |
|---|---|---|---|
| observedCatchBasinInflowLitersSecond | Observed catch basin inflow liters second | number | Required |
| callerRetentionSeconds | Caller retention seconds | number | Required |
| observedSedimentReservedLiters | Observed sediment reserved liters | number | Required |
| callerUsableVolumeFraction | Caller usable volume fraction | number | Required |
Enter nonnegative inflow, retention time and sediment reserve, with usable fraction in (0,1]. Return required usable and nominal liters.
usableLiters=inflowLitersPerSecond×retentionSeconds+sedimentLiters; nominal=usable/usableFraction Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| requiredCatchBasinUsableLiters | Required catch basin usable liters | number |
| requiredNominalCatchBasinLiters | Required nominal catch basin liters | number |
{
"input": {
"observedCatchBasinInflowLitersSecond": 10,
"callerRetentionSeconds": 30,
"observedSedimentReservedLiters": 50,
"callerUsableVolumeFraction": 0.8
},
"output": {
"requiredCatchBasinUsableLiters": 350,
"requiredNominalCatchBasinLiters": 437.5
}
}Limitations and assumptions
No grate-capture estimate, universal civil-design rule or overflow safety is supplied.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Plumbing Storm Drain Size Calculator: Storm-drain capacities depend on matched slope and hydraulic conditions. A caller catalog screens all candidates against design flow. For a complementary task, use Plumbing Drywell Size Calculator: Drywell storage can credit justified infiltration during the event. Aggregate void fraction converts water storage to bulk volume.
References
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Plumbing Catch Basin Size Calculator — tool.io
Similar or alternative tools
- Plumbing Storm Drain Size Calculator
Storm-drain capacities depend on matched slope and hydraulic conditions. A caller catalog screens all candidates against design flow.
- Plumbing Drywell Size Calculator
Drywell storage can credit justified infiltration during the event. Aggregate void fraction converts water storage to bulk volume.