Septic Tank Sizing Calculator vs Sump Pump Sizing Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Septic Tank Sizing Calculator
Estimates the minimum septic tank volume (in gallons) needed for a home based on bedroom count, occupants, plumbing fixtures, and daily wastewater generation. Use it when designing or permitting a new septic system.
- Answers
- Minimum Tank Size (gallons)
- Inputs
- Number of Bedrooms, Number of Occupants, Plumbing Fixtures, Daily Wastewater per Person
Sump Pump Sizing Calculator
Determine the minimum sump pump capacity (GPH) needed to protect your basement given its area, local peak rainfall, soil drainage, and discharge lift height. Use it before purchasing a pump or when upgrading an undersized unit.
- Answers
- Required Pump Capacity (GPM)
- Inputs
- Basement Area, Maximum Rainfall Rate, Vertical Lift Height, Soil Drainage
At a glance
| Septic Tank Sizing Calculator | Sump Pump Sizing Calculator | |
|---|---|---|
| Category | Plumbing | Plumbing |
| Answers | Minimum Tank Size | Required Pump Capacity |
| Inputs | 4 | 4 |
| Result unit | gallons | GPM |
When to use each
Estimates the minimum septic tank volume (in gallons) needed for a home based on bedroom count, occupants, plumbing fixtures, and daily wastewater generation. Use it when designing or permitting a new septic system.
Determine the minimum sump pump capacity (GPH) needed to protect your basement given its area, local peak rainfall, soil drainage, and discharge lift height. Use it before purchasing a pump or when upgrading an undersized unit.