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Plumbing
Calculate rainwater collection potential from roof area and rainfall.
Open RainwaterYour specific task is calculate pump flow rate needed from fixture count and demand. Open the page, drop your input, get the result — typically under a second.
Your goal is calculate rainwater collection potential from roof area and rainfall. Same approach: paste in, get the result, move on. No account, no upload.
Both tools live in the same category, so the choice depends on the exact subtask. Pump Flow focuses on calculate pump flow rate needed from fixture count and demand; Rainwater focuses on calculate rainwater collection potential from roof area and rainfall. Try whichever description matches your goal more closely — they're both free.
Yes — both tools are free for unlimited personal use. The Pro plan unlocks higher limits and batch features but the core functionality stays free forever.
Absolutely. Many users chain multiple tools together — process a file with one, then feed the result into another. Nothing is uploaded, so chaining is essentially instant.
No. Both Pump Flow and Rainwater work without signup. We only ask for an email if you decide to subscribe to a paid plan.