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TankPulse case study

TankPulse is the stock accounting system ChurroTech built for SK Oil Terminals, a bulk liquid storage terminal. It replaced about 50 spreadsheets, and can be set up at another terminal in 2 to 4 weeks.

Key takeaways

The problem: What was going wrong before TankPulse?

Before TankPulse, SK Oil Terminals tracked stock for every tank across about 50 spreadsheets.

  • Daily dip readings sat in different spreadsheets, and stock was worked out by hand.
  • Knowing what was in a tank, and for whom, meant going through several files.
  • Stock reports were rebuilt by hand every time someone needed one.
  • When a number changed, nobody could say who changed it, or why.
  • Anyone with the spreadsheet could see every client’s data and change any figure.
  • Client, product, tank and licence details sat in separate files and went out of date.
TankPulse tank overview: 29 occupied tanks, 2 empty and 31 in total, with stock figures for each tank
The real TankPulse app, shown with demo data.

Before and after: What changed for SK Oil Terminals?

SK Oil Terminals moved from spreadsheets to one system that every shift, manager and client works from.

What changedBeforeWith TankPulse
Stock recordsAbout 50 spreadsheetsOne record for every tank, across every terminal
Daily reportRebuilt by handGenerated from the day’s entries, downloaded as Excel
Editing a numberAnyone could overwrite itOnly the right roles, and every change is logged
Stock lossesFound late, left unexplainedLoss or gain on every dip, with a note required past the cut-off
Client questionsNobody could say who entered a figureWho entered it, when, and the value before and after
Licence renewalsExpiry dates easy to missEmail reminders six times before each expiry

What we built: What does TankPulse do?

TankPulse is a web-based stock accounting system for terminals that store bulk liquids, for their own account or for clients. It has six parts:

  • Tank Overview

    Every tank in one view: status, product, client, book and physical stock, capacity used, and loss or gain in KL or MT.

  • Recordings

    The four entries that make up the stock record: daily dip readings, vessel receipts, truck dispatches and internal transfers.

  • Reports

    Daily Loss/Gain, Monthly and Vessel reports for any period up to 366 days, by client and tank, downloaded as formatted Excel.

  • Audit Trail

    Every create, update and delete across 13 kinds of record: who made it, when, and the values before and after.

  • Admin Console

    One source of truth for clients, products, tanks, calibration charts and licences, with GST numbers and contract dates.

  • Settings

    The stock loss cut-off, the edit window, user accounts and roles, and the weighbridge connection.

How it works: How does TankPulse calculate stock?

TankPulse keeps two independent figures for every tank, and the gap between them is the stock loss or gain.

Book stock is what should be in the tank according to the record of movements. Receipts and incoming transfers add to it; dispatches and outgoing transfers reduce it.

Physical stock is what dipping finds. TankPulse converts the dipstick height to a volume using that tank’s own calibration chart, corrects it for temperature and density, and adds any product held in the pipeline. It picks one of six formulas by product and tank type, including internal floating roof tanks.

Loss or gain is physical minus book stock. A reading past the terminal’s cut-off can’t be saved without a note, and every correction recalculates the reports from that point on.

Access: Who can see and change what in TankPulse?

TankPulse gives every user one of four roles, and the server checks the role on every request.

TankPulse roles and what each can access
RoleTank OverviewRecordingsReportsAudit TrailAdmin Console
Super AdminTerminal head or system ownerYesYesYesYesYes
Warehouse AdminTerminal managerYesYesYesNoNo
Warehouse OperatorShift staffYesYesNoNoNo
ClientA storage client’s representativeOwn tanksRead-onlyOwn reportsNoNo
  • Super Admin

    Terminal head or system owner

    Tank Overview
    Yes
    Recordings
    Yes
    Reports
    Yes
    Audit Trail
    Yes
    Admin Console
    Yes
  • Warehouse Admin

    Terminal manager

    Tank Overview
    Yes
    Recordings
    Yes
    Reports
    Yes
    Audit Trail
    No
    Admin Console
    No
  • Warehouse Operator

    Shift staff

    Tank Overview
    Yes
    Recordings
    Yes
    Reports
    No
    Audit Trail
    No
    Admin Console
    No
  • Client

    A storage client’s representative

    Tank Overview
    Own tanks
    Recordings
    Read-only
    Reports
    Own reports
    Audit Trail
    No
    Admin Console
    No

Audit trail: How does TankPulse keep the numbers trustworthy?

TankPulse logs every change and limits who can make one. Shift staff and managers can edit an entry once, on the same day, within an edit window of up to 24 hours. Entries older than yesterday can’t be changed by anyone, and every edit or deletion shows in the audit trail with the values before and after.

TankPulse audit trail listing each create, update and delete, with the fields changed
The real TankPulse app, shown with demo data.

Delivery: How long does it take to set up TankPulse at your terminal?

Setting TankPulse up at a new terminal takes 2 to 4 weeks, in five steps. It runs in a web browser, so nothing is installed on the team’s computers.

  1. Discovery

    Understand your terminal: tank count, products, clients and how the work moves.

  2. Configuration

    Set TankPulse up for your terminal’s products, tank classes and reports.

  3. Data onboarding

    Load clients, products, tanks, calibration charts and opening balances.

  4. Integration

    Connect the weighbridge, so truck dispatches arrive without manual entry.

  5. Go live

    Train your team and hand over.

Built with Next.js, React and TypeScript, a Node.js and Express API, and PostgreSQL. Passwords are hashed with bcrypt, and each client’s data is separated on the server.

“ChurroTech completely transformed our operations. What used to take days of manual tallying now happens instantly. We’ve scaled significantly without adding operational headcount.”
Vedant Kajaria, Director, SK Oil Terminals