Sewer Pipe Calculator vs Fall Check

Sewer Pipe Calculator designs and checks gravity sewer and storm drain pipes with the Manning equation for partially full circular pipes. Enter what you know and get what is missing. 6 GRAVITY CALCULATORS (FREE) • Velocity & Depth: flow, slope and diameter → velocity and water depth • Diameter from Flow: minimum diameter and the next commercial size from your catalog • Slope Range: minimum and maximum slope that meet velocity, depth and self-cleansing criteria • Minimum Slope & Diameter: when only the flow is known • Flow & Velocity from Depth: analyze an existing pipe • Flow Analysis: flow, velocity, hydraulic radius, h/D, Froude number and tractive force SELF-CLEANSING CHECK Tractive force τ = ρ·g·R·S next to the velocity, with a color verdict: self-cleansing OK or sedimentation risk. A pipe can meet the minimum velocity and still fail on tractive force. PIPE CATALOGS PVC, concrete, vitrified clay and corrugated HDPE (SI and US) with their Manning n and commercial diameters. PRO • Export any calculation to PDF and save/load calculations • Custom pipe catalogs STRUCTURES PACK Inverted siphon (automatic sizing), pump station (wet well volume, pump power, cycle times), weirs and overflows, minor losses and manholes, orifices and gates. FORCE MAIN PACK Total dynamic head with Hazen-Williams, economic diameter (Bresse) and water hammer (Joukowsky), with the TDH passed straight to the pump station. COLLECTOR DESIGNER Design a full sewer line segment by segment, like a spreadsheet: flow accumulates and invert levels propagate downstream, every segment is checked for velocity, tractive force, h/D, cover and surcharge, with a longitudinal profile and a PDF design table. SI and US units. English and Spanish. Works offline. For civil and sanitary engineers, designers and students working on sewer networks, storm drainage and simplified sewerage systems.

FallCheck is a simple, accurate slope and gradient measurement tool for plumbers, builders, and site engineers. Using your phone's built-in sensors, FallCheck measures the angle of a pipe or surface and instantly tells you whether it falls within your required gradient range - no spirit level, no calculations, no guesswork. KEY FEATURES Measure pipe slope and fall directly on site Enter your own gradient requirements (e.g. 1:40, 1:80, 1:150) Instant pass/fail result with clear visual feedback One-time calibration for accurate readings on your device Wrong-direction warning if the phone is facing the wrong way PRO FEATURES Save unlimited custom gradient standards for quick reuse Measurement history for every job Export professional PDF reports for compliance records WHO IS IT FOR FallCheck is built for plumbers, drainage contractors, groundworkers, building inspectors, and anyone who needs to verify pipe fall, drain gradient, or slope compliance on site. Compliance values are entered by you, based on your local building regulations or project specification. FallCheck provides the measurement - you apply the standard. No ads. No data collection. No subscriptions.