{"slug":"plumbing-calc-x402tookit-com-pressure-loss-9ba1fb","title":"Friction pressure loss in psi (and feet of head) over a pipe run by the Hazen-Wi","host":"plumbing-calc.x402tookit.com","method":"GET","resource":"https://plumbing-calc.x402tookit.com/pressure-loss","category":"other","description":"Friction pressure loss in psi (and feet of head) over a pipe run by the Hazen-Williams formula, from flow, size and C factor.","price_listed":0.02,"price_asked":0.02,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":334,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"flowGpm":10,"lengthFeet":100,"material":"copper-l","nominalSize":"3/4"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"cFactor":{"description":"Hazen-Williams C: 140 copper, 150 PVC (defaults), 100 old steel","type":"number"},"flowGpm":{"description":"Flow in US gallons per minute","type":"number"},"insideDiameterInches":{"description":"Inside diameter in inches","type":"number"},"lengthFeet":{"description":"Pipe length in feet (add equivalent length of fittings if you know it)","type":"number"},"material":{"description":"copper-l or pvc-40 (default copper-l)","type":"string"},"nominalSize":{"description":"Nominal size such as 3/4 (with material), or insideDiameterInches","type":"string"}},"required":["flowGpm","lengthFeet"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"asOf":{"type":["null","string"]},"cFactor":{"type":["null","number"]},"degraded":{"type":["boolean","null"]},"disclaimer":{"type":["null","string"]},"feetOfHeadLoss":{"type":["null","number"]},"flowGpm":{"type":["null","number"]},"insideDiameterInches":{"type":["null","number"]},"kilopascalsLoss":{"type":["null","number"]},"lengthFeet":{"type":["null","number"]},"lossIfFlowDoubled":{"type":["null","number"]},"notChecked":{"items":{"type":"string"},"type":["array","null"]},"pipe":{"type":["null","string"]},"psiPer100Feet":{"type":["null","number"]},"psiPerFoot":{"type":["null","number"]},"reasons":{"items":{"type":"string"},"type":["array","null"]},"source":{"type":["null","string"]},"summary":{"type":["null","string"]},"totalPsiLoss":{"type":["null","number"]},"verdict":{"type":["null","string"]}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-21","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.02,"price_match":true,"latency_ms":334,"error":null}],"description_full":"Friction pressure loss in psi (and feet of head) over a pipe run by the Hazen-Williams formula, from flow, size and C factor.","last_updated":"2026-10-20T20:30:05.635Z","schemes":["exact"]}