Sump Pump & Basement Flood Tools
Use these free tools to narrow down a basement-water problem before comparing equipment, requesting service, or planning flood-control work.
No email is required to see the result. Each tool is designed for a different question: Where is the water coming from? Why is the pump behaving this way? How much capacity may be needed? What might the project cost? Are local rebates or rules relevant?
These are screening and planning tools, not substitutes for an on-site plumbing, electrical, sewer, drainage, or flood-control evaluation.
Start With the Water Source
Basement Water Source Diagnostic
If you are not sure whether the problem is the sump pump at all, start here.
The diagnostic compares where the water appeared, what it looked or smelled like, and what the sump system was doing. It screens for four broad directions:
- Sump / groundwater problem
- Sewer backup
- Foundation seepage / drainage collection
- Surface or overland water
Use the Basement Water Source Diagnostic →
If the Sump System Is Involved, Analyze the Behavior
Sump Pump Cycling Analyzer
Use this when the pump runs too often, seems to run continuously, starts and stops every few seconds, or behaves differently after shutting off.
The analyzer helps screen for:
- Short-cycling
- Check-valve backflow
- Heavy groundwater inflow
- Float/control problems
- Possible capacity mismatch
- Dry-weather or unexplained cycling
Estimate the Pumping Capacity the System May Need
Sump Pump Size Calculator
This tool estimates incoming water flow from the measured rise inside a sump basin, adds a design margin, and gives a target flow to compare against the manufacturer pump curve at the actual total dynamic head.
It is intended to help answer the useful sizing question—how much water must the system move under real conditions—rather than choosing a pump from horsepower alone.
Use the Sump Pump Size Calculator →
Estimate Project Cost
Sump Pump Cost Estimator
Use the estimator for a planning range when comparing:
- Repair
- Pump replacement
- New sump-pump installation
- Battery-backup installation
The result is a budgeting range, not a contractor quote. Basin work, discharge changes, electrical scope, access, backup equipment, and the actual cause of the problem can materially change the final price.
Check Municipal Flood Programs and Rules
Chicago-Area Flood Rebate & Rules Finder
Municipal flood programs are not interchangeable. One suburb may subsidize an overhead sewer, another may help with yard drainage, another may have a suspended program, and another may impose specific sump-discharge rules.
The finder organizes municipality-specific information and links back to official local sources so the current terms can be checked before work begins.
Find Flood Rebates & Local Rules →
Which Tool Should I Use?
| Your question | Start here |
|---|---|
| “Why is there water in my basement?” | Water Source Diagnostic |
| “Why does my sump pump run so often?” | Cycling Analyzer |
| “How much pumping capacity may I need?” | Size Calculator |
| “What should I budget for the project?” | Cost Estimator |
| “Does my suburb have a rebate or special rule?” | Rebate & Rules Finder |
What These Tools Cannot Determine
A browser tool cannot verify the condition of a motor, energized wiring, buried drain tile, a blocked sewer lateral, a concealed discharge line, or the exact hydraulic performance of a pump without reliable measurements.
Use the result as a decision aid—not as proof that a specific component has failed.
Safety Comes Before the Result
- Do not enter standing water where electrical equipment may be energized.
- Do not remove electrical-panel covers or work on energized pump wiring for the purpose of completing a tool.
- Do not open a sewage-ejector basin or contact sewage-contaminated water to collect measurements.
- Stop a measurement if the sump basin is approaching overflow.
- If sewage is backing up, stop using affected fixtures until the sewer/ejector problem is diagnosed.
If water is actively rising and the sump system is failing, use Emergency Sump Pump Service. For non-emergency diagnosis, see Sump Pump Repair.
Sump Pump Tools FAQ
Are these sump pump tools free?
Yes. The tools on this hub can be used without an email gate to view the result.
Which tool should I use first?
If the water source is uncertain, start with the Basement Water Source Diagnostic. If you already know the sump system is involved, use the Cycling Analyzer or Size Calculator depending on the question.
Can the size calculator tell me exactly which pump to buy?
No. It estimates the required flow. The result still has to be compared with the exact manufacturer’s pump curve at the actual total dynamic head and with the basin, float, discharge, and electrical requirements.
Is the cost estimator a quote?
No. It is a budgeting tool. The actual scope and price depend on the existing basin, pump, piping, electrical setup, access, backup equipment, and what is actually causing the problem.
Are municipal rebate amounts guaranteed?
No. Local programs can change, pause, exhaust funding, or revise eligibility. The rebate finder should be used with the linked official municipality source before a project is started.
Can these tools replace an inspection?
No. They help narrow the problem and improve the questions you ask. They cannot physically inspect pumps, electrical equipment, sewer lines, drain tile, valves, or concealed piping.
Need Service After Using a Tool?
Keep the result and the observations you entered. They can help describe the problem more clearly when requesting service.