Used by container wash stations, depots, and service facilities across Europe, Africa, Australia and the Middle East — from single wash bays to multi-site cleaning operators handling tens of thousands of records monthly.
The operational evidence layer for container wash. Every wash record — before, during, and after — linked to the ISO 6346-validated container number on a single chronological record, retained on terms the wash station controls, and produced on demand for the disputed invoice, the cleaning-certificate challenge, and the pre-existing-damage claim. A disputed wash without defensible evidence becomes a direct operational cost.
Container-linked before-and-after wash records — replaces WhatsApp threads, shared folders, and personal-device archives with a structured, searchable, container-indexed evidence archive that holds up under customer review and shipping-line scrutiny.
No obligations — reply within 1 business day · Checker adapts to your wash station — facility type, volume, and integration stack all shape the workflow, not the other way around.
Field-tested in depot and wash operations since 2013
ISO 6346 container number validation
Works fully offline in wash bays and yards
Where Wash Documentation Quietly Costs Real Money
Wash documentation is the proof of cleaning quality, the defence against condition disputes, and the record of pre-existing damage on the container at arrival. When that evidence lives on personal devices, in WhatsApp threads, and in shared folders, the cost shows up as disputed invoices, cleaning certificates that get pushed back on, and pre-existing damage the wash station ends up paying for. A disputed wash charge without defensible evidence becomes a direct operational cost.
In many wash stations, documentation is still
Captured on personal devices — no link to the container number or wash record
Shared via WhatsApp or email — stored in chat threads, not against container references
Filed in shared drives without consistent naming — before and after photos mixed or separated
Impossible to retrieve quickly when a customer or shipping line disputes condition
Not connected to depot management or operational systems — wash records exist in isolation
The result in active wash operations
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Before/after photos unlinked — no structured cleaning record per container
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Manual folder organisation takes time that field staff do not have
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Condition disputes unresolvable — cleaning evidence is missing or unverifiable
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Historical wash records unrecoverable when customers request documentation
When a customer or shipping line questions container condition after a wash, the ability to produce a container-linked before-and-after record in seconds is the difference between a resolved dispute and a written-off charge. Invoicing and cleaning-certificate validation become difficult the moment evidence cannot be produced on demand — and the wash station ends up carrying the cost. Structured wash evidence takes that risk off individual diligence and onto a measurable process. For the platform-level definition, see what is container operational evidence →
A Container-Linked Wash Evidence Workflow — Capture to Audit
ConPDS Checker turns each wash into a container-linked evidence record built for wash station conditions — captured (photo, video, audio) before, during, and after the wash; validated against the ISO 6346 container number; archived in a searchable record; and integrated with the depot management system already in place.
01
Capture
02
Recognise
03
Archive
04
Integrate
Step 01 — Capture
Capture Before and After Wash Photos in the Yard
Wash station staff use the ConPDS Checker mobile app on their existing smartphones or tablets to capture container condition before and after washing — exterior, interior, and any pre-existing damage — in a single structured workflow. No additional hardware required.
For wash operations where a static photo is not sufficient evidence, ConPDS Checker also supports short video clips (up to 30 seconds) and audio notes. In practice this is most useful for: documenting water spray coverage across the full exterior in a single continuous clip; showing post-wash interior drainage where residue or contamination is in dispute; and recording pre-wash arrival condition — odour, cargo remains, or visible contamination — before cleaning begins. For ISO tank and chemical container cleaning, video of valve condition and post-rinse state provides stronger cleaning certificate support than a still photo alone. All video and audio is linked to the same container-specific wash record and logged in the audit trail.
Step 02 — Recognise
Automatic Container Number Recognition and Validation
The system reads and validates the container number directly in the app using AI-powered OCR with standard check-digit validation (owner code, serial number, and check digit validation) — ensuring every before-and-after wash photo is always linked to the correct container record at the point of capture. Photos are stored under the validated container reference immediately, eliminating manual renaming, reducing documentation errors, and creating a clean, container-referenced wash record from the first photo.
Step 03 — Archive
Searchable Before-and-After Wash Archive — Retrievable in Seconds
All before-and-after wash photos, pre-existing damage records, and container condition notes are stored in a searchable cloud archive organised by container number. The complete wash history builds automatically per container — retrievable in seconds by any office staff member searching the container number in the web dashboard, even months later during customer disputes or quality reviews. Wash records can also support cleaning certificates issued to customers and leasing companies — providing the photo evidence that transforms a certificate from a statement into verifiable proof. This is what container cleaning documentation software is designed to make effortless.
Step 04 — Integrate
Integration with Depot and Operational Systems
Records connect to existing depot management and M&R systems via API — wash evidence becomes part of the operational record, not a parallel archive. ConPDS Checker does not replace your existing system; it adds the operational evidence layer your current stack is missing.
EOSDepotMasterMaersk AEMSCustom APIREST · FTP · SFTP& more on request
What an Evidence Layer Provides That Informal Photos Cannot
A photo on a phone proves nothing without context. A container-indexed before-and-after record — timestamped, GPS-tagged, and on the same audit log as the distribution event — is defensible cleaning evidence, retrievable on demand, months after the wash.
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Before & After in One Record
Pre-wash and post-wash photos stored chronologically under the same container number — one complete, retrievable cleaning record.
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ISO-Validated Container Link
Every photo linked to an OCR-validated container number at capture — not filed separately, not renamed manually, not lost in a shared drive.
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Timestamp & GPS Metadata
Every capture preserves time and location data — creating verifiable evidence of when and where each wash photo was taken.
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Instant Historical Retrieval
Any container's full wash history is searchable in seconds from the web dashboard — no dependency on personal devices or chat thread memory.
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Pre-Existing Damage Record
Document container damage present before washing — protecting the wash station from being held responsible for pre-arrival condition.
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Logged Customer Distribution
Share structured wash documentation directly with shipping lines, leasing companies, or depot customers — every distribution event logged in the audit trail.
Defensible Proof for Customers, Shipping Lines, and Lessors
When wash evidence is container-linked and instantly retrievable, the wash station responds to customer enquiries from a position of evidence — not from a phone gallery searched under time pressure. The evidence workflow replaces informal photo sharing with ISO 6346-validated container records that hold up under invoice review and cleaning-certificate validation. For gate-in, repair, and lease return documentation, see how the container depot inspection evidence layer applies the same approach to depot operations.
✗ Informal Photo Handling
✗ Before/after evidence in chat threads — not against container records
✗ No container number link — retrieval depends on staff memory and device access
✗ Messaging-app compression strips GPS and timestamp metadata from every image
✗ No audit log — no record of who received what or when
✗ Disputed wash charges become reconstruction work, not retrieval
✓ Container Wash Evidence Layer
✓ Before, during, and after records linked to validated container numbers at capture
✓ Searchable by container number, date, wash type, or staff member
✓ GPS and timestamp preserved from field capture to archive — evidence integrity intact
✓ End-to-end audit log — every capture, access, and distribution event recorded automatically
✓ Full wash history retrievable in seconds — months later, on demand
Built for Fast Capture in Active Wash Environments
Container wash bays are busy, practical environments. ConPDS runs on the smartphones wash station staff already carry — built for fast capture, minimal manual input, and reliable operation regardless of Wi-Fi coverage in the wash bay or yard. Every capture is container-linked the moment it is taken.
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ConPDS Checker — wash evidence capture in an active wash bay
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Web dashboard — container-linked wash records, searchable by container number and wash date
Works online and offline — AI recognition and all capture functions run without a network connection
Runs on standard iOS and Android smartphones — no additional hardware or device rollout required
Captures photos, short video clips (30s), and audio notes — all linked to the same container-specific wash record
Designed for fast before-and-after capture in active container wash bays, yards, and depot environments
Wash station staff operational within days of onboarding — no manuals, no classroom training, no IT project required
Operating Across Active Container Wash and Depot Operations
The workflow runs in container wash stations, depots, and service facilities across Europe, Africa, Australia and the Middle East. Field-tested in operational depot and wash environments since 2013 and refined continuously against the operational reality of wash work.
2013
Field-tested in operational depot and wash environments since
100+
Depot locations and service facilities standardised on the evidence layer
10M+
Container-linked inspection and wash records stored and retrievable
→ ISO tank and chemical container wash facilities requiring cleaning certificate photo support and post-rinse evidence
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All container wash and condition records are encrypted on-device and in transit. Storage is GDPR-compliant and hosted in EU infrastructure. Role-based access controls ensure wash records are accessible only to authorised personnel — inside the operation and across the organisations the wash station reports to.
Security, Retention, and Audit Posture
GDPR CompliantEU-HostedContainer Number ValidationRole-Based AccessConfigurable RetentionEnd-to-End Audit Log
Every before-and-after wash capture, access event and distribution event is logged automatically — no manual entry required
Supports documentation requirements for shipping lines and leasing companies requesting verifiable container cleaning evidence and condition records
All wash and condition documentation is encrypted on-device from capture and during transfer — protected from access by other applications
Guest portal access for customers and shipping lines is scoped and fully logged per container — access can be restricted per container, per inspection, or per user role
Data retention periods are configurable to align with operational and contractual requirements
Custom APIs · REST · FTP · SFTP · new integrations on request
Media Types
Photos · Video (30s) · Audio
All linked to validated container number
Security
Encrypted · GDPR compliant
Role-based access · EU-hosted storage
Deployment
Operational within hours
Full onboarding support included
Frequently Asked Questions About the Wash Evidence Layer
Can we document both before and after washing in the same container record?
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Yes. ConPDS Checker allows structured capture of multiple photos — before washing, during, and after — all linked to the same validated container record. Every image is timestamped, GPS-tagged, and stored chronologically so the full before-and-after sequence is retrievable as a complete, verifiable cleaning record. No manual sorting or renaming required.
Do we need special cameras or hardware?
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No. The app runs on standard iOS and Android smartphones and tablets already used by wash station staff. No additional hardware, specialist equipment, or IT project is required. If your team can take a photo on a phone, they can use ConPDS Checker within days of onboarding — no manuals, no classroom training, no resistance from the team on the ground.
Does it work if Wi-Fi coverage is limited in the wash bay?
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Yes. ConPDS Checker works fully offline. AI-powered container number recognition, photo capture, and container record tagging all function without a network connection. Photos queue on-device and synchronise automatically to the web dashboard once connectivity is restored — reliable in wash bays, yard areas, and depot environments with intermittent or no signal.
Can documentation be retrieved months later for a customer dispute?
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Yes. All documentation is stored centrally in a searchable cloud archive organised by container number. The full before-and-after wash record for any container is retrievable in seconds — even months later — by searching the container number in the web dashboard. No dependency on individual devices, chat threads, or personal photo libraries.
How quickly can a wash station start using ConPDS Checker?
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Most wash stations are fully operational within hours of onboarding. Setup includes tenant configuration, user and role management, and standard forwarding rules — all handled by the ConPDS team. An initial onboarding call is included with every subscription. No on-premise infrastructure is required and no project management burden falls on your team. The core before-and-after wash documentation workflow can typically be running the same day.
Related Resources
The ConPDS evidence platform spans depot, reefer, and wash verticals — one workflow, one archive, one audit standard. Explore the integrations that distribute wash evidence, or the verticals most relevant to your operation.
Container Operational Evidence Platform
The category hub connecting wash evidence with Checker, Tracker, Autogate, audit trails, repair workflows, and depot operations.
Shipping-line M&R systems, depot management systems, and structured exports — every integration ConPDS Checker connects to, and how new integrations get built.
If your wash station produces before-and-after records every day, the question is not whether you have evidence — it is whether you can produce it on demand for the disputed invoice, the cleaning-certificate challenge, and the pre-existing-damage claim. ConPDS takes that off individual diligence and onto a measurable process.
A Disputed Wash Charge Without Defensible Evidence Becomes Direct Operational Cost
✗ Dispute unresolvable: A customer questions post-wash condition and the before record cannot be located — the wash station has no defensible evidence and no way to reconstruct a timestamped record.
✗ Invoice rejected: A cleaning invoice is disputed because evidence supporting the completed wash cannot be produced on demand — the delay costs time and erodes trust with the customer.
✗ Certificate challenged: A cleaning certificate is issued but carries no supporting evidence — the certificate is a statement rather than proof, and leasing companies or shipping lines push back.
✗ Records lost on device change: Months of wash records stored on a personal device become inaccessible when the phone is replaced or the employee leaves — no central archive, no recovery path.
✗ Pre-existing damage missed: Damage present before washing is not captured in a linked, timestamped record — the wash station is held liable for a condition it did not cause and cannot disprove.
With informal methods, a before-record taken on a personal device cannot be produced when a wash dispute is raised weeks later — and the wash station has no defensible evidence to present. With ConPDS, the complete before-and-after record is searchable by container number in seconds, with GPS and timestamp metadata intact from the original capture.
