DropTubeBuilder vs HydroCalc Basic

DropTubeBuilder is the offline field tool for fuel system technicians who cut overfill drop tubes, build tank charts, and work alarms on site. Everything works with no signal, because the pit does not have any. DROP TUBE CUT MATH Enter the measurements and get the cut length that puts the overfill valve at the 95 percent regulatory fill level. Supports Franklin Defender, EMCO, and OPW ISO valves, with the seat to bottom, tank height and riser measurements each handled properly. Upper cut, lower cut and total length come back with the shutoff height so you can check the result before you cut anything. TANK CHART BUILDER Build a volume chart in eighth inch increments for any tank, and export it as a PDF you can leave on site or file. Built in instructions walk through fitting the chart to a real tank, including why the 95 and 90 percent overfill heights follow the tank diameter alone and hold steady when the length changes. ERROR CODES Nearly 600 codes covering Gilbarco Encore 300, 500S and 700S, Wayne Ovation, Veeder-Root TLS-300, TLS-350, TLS-450, TLS-450 PLUS and TLS4, and Franklin INCON EVO 550 and 5000. Tap any code and you get what it actually means, then an ordered list of what to check, most likely cause first, so you can work the alarm instead of just reading it back. Line test failures start with the programming that causes most false failures. Console faults tell you when the alarm is an audit entry rather than a fault. Where an alarm carries a compliance consequence, that is stated after the repair steps, not instead of them. Searchable, fully offline, and written to be verified against the manufacturer service manual rather than to replace it. PUMP CONTROLLERS Fault codes, status codes, DIP switch settings and calibration notes for FE Petro MagVFC and Guardian SPGC 220 controllers. EPD THREE YEAR INSPECTION Work the inspection criterion by criterion and get a clear pass or fail, then export a signed PDF record. The footer reminds you to keep the record copy for three years, because that is the part people forget. MEASUREMENT HISTORY Every calculation is saved with its site name, so last year's job is there when you go back. Re export any past calculation as a PDF. BUILT FOR THE FIELD Everything ships inside the app. No account, no login, no server, no advertising, and nothing collected about you or your sites. It works in a tank pit with no bars. Available in English, Spanish, French, German, Hindi and Chinese. SUBSCRIPTION DropTubeBuilder Pro is $14.99 a month or $49.99 a year. The yearly plan starts with a 3 day free trial with full access. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and the account is charged for renewal within 24 hours before the period ends. Manage or cancel any time in your Apple Account settings. Any unused part of a free trial ends when you buy a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ DropTubeBuilder Terms: https://thrasherapps.com/droptubebuilder/terms.html Privacy Policy: https://thrasherapps.com/droptubebuilder/privacy.html Support: https://thrasherapps.com/droptubebuilder/support.html

Pipe Headloss Calculator provides engineers, designers, and students with powerful tools for pipeline hydraulic analysis — without the hassle of complex manual computations. Whether you’re sizing new pipelines or analyzing existing systems, the app delivers rapid, accurate results. Key Features Automatic Unit Conversion – Seamlessly switch between US Customary and SI units for length, flow, and diameter. Pipeline-Specific Inputs – Enter pipeline length, flow rate, internal diameter, and pipe material. Powerful Inverse Calculator – Set a target head loss and calculate the required diameter, flow, or length. Instantly view flow velocity, friction head loss, fitting losses, and full system curve data. With a clean interface and fast performance, this app is designed to save time and improve accuracy in hydraulic calculations — from the classroom to the field.