Case study

Tank level and inventory reconciliation

Silo & levelPharmaceutical & ChemicalMunicipal & Public UtilitiesBulk Handling & Rail Logistics

Measured tank level reconciled against what the paperwork said was in there.

A bulk chemical storage operation found differences between tank inventory and its records only at stock counts. We convert measured levels into volumes and compare them with booked inventory daily so the team can investigate a variance closer to when it appears.

What the data showed

Hover or arrow-key across the trace to read any interval. The flagged point is the one that started the conversation.

Tank level and inventory reconciliation
MEASURED VS BOOKED VOLUME · 30 DAYS · DAILY
Chart data
IntervalBooked (m³)Measured (m³)
D1240240
D2234234
D3228227
D4224221
D5219214
D6212208
D7207202
D8201196
D9195189
D10191184
D11185177
D12179171
D13175164
D14169159
D15163152
D16158145
D17153139
D18146132
D19142126
D20136121
D21131115
D22124108
D23119101
D2411395
D2510989
D2610283
D279876
D289169
D298564
D308157
Before and after, in words
BeforeA variance discovered at count
AfterA variance visible the day it appears

Background

A bulk chemical storage operation keeps an inventory record for material held in its tanks. The record and the physical contents can drift apart between counts. Our monitoring brings the tank measurement alongside the booked inventory so the team can compare both while the day’s activity is still recent.

The problem

Discovering a gap at a later count leaves a period of activity to investigate. The team knows the recorded and measured amounts disagree, but the timing of the difference is unclear. That makes it harder to work back through the records and find where the variance began.

How we found it

We use level sensors on the storage tanks and convert the readings into volume using each tank’s geometry. The dashboard compares that measured volume with booked inventory daily. Following the difference over time shows when the records begin to diverge, giving the team a defined day to examine more closely.

What changed

A variance is visible on the day it appears. The team can review the measurement and the inventory entry together instead of waiting for the next stock count. The comparison identifies the gap and its timing; the people responsible for the inventory can then investigate the activity and records associated with that period.

The lesson

We keep the measured volume and the booked amount as separate readings in the same view. The difference is useful because it points to something the team can check, without assigning a cause before they investigate. Continuing the daily comparison gives them a way to follow the variance through a correction and see whether the records and the tank remain in agreement.

What changed

Before

A variance discovered at count

After

A variance visible the day it appears

Continuousreconciliation

Measured volume compared against booked inventory, every day.

Find out what’s hiding in your factory.

Every study on this site started with somebody walking a floor and asking what the numbers actually were. Our team will do the same on yours and tell you honestly what we find.

Book a site visitAll case studies

or call 1-833-QUANTFY (1-833-782-6839)