> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gasos.ng/llms.txt
> Use this file to discover all available pages before exploring further.

# Dips and stock

> Dip every tank at close, and how Gasos checks stock against sales and deliveries.

Dip every tank at close and enter the litres from your tank chart. Tonight's dip is tomorrow's opening stock.

For each tank, or group of connected tanks, Gasos expects:

> opening dip + fuel received − litres sold = expected closing stock

and compares it with your dip. A difference bigger than 0.5% of the litres sold (and at least 20 litres) needs a reason. Owners can change these limits in **Station setup → Rules**.

A tank that isn't dipped shows its stock as **unknown**, never zero.

## The Stock page

**Stock** shows each tank's level from the latest dip, how many days it will last at the recent selling rate, and its daily variance over the last two weeks. Tanks under three days of stock show as **Low**.

## Corrections to an approved day

Approved days never change. If a mistake turns up later, add a **correction** on today's sheet with the reason; it adjusts today's expected stock or cash and stays linked to the day it corrects.


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