A slurry store is one of the few things on a farm that can kill you in under a minute. The gas released when you start agitating settled slurry, mostly hydrogen sulphide, can overcome a person before they realise anything is wrong, and it has taken whole families and herds. Alongside that sits a structural risk and a pollution risk, all in the same tank. So the real question about a slurry store inspection is not what template to print. It is whether the store gets checked and the safe mixing procedure gets followed before anyone opens the valve.
Guide · Agriculture
Slurry store inspection and gas safety for UK farms.
A practical guide to inspecting slurry and silage stores, the SSAFO structural rules and the deadly gas risk during mixing, from paper records and generic apps to a WhatsApp workflow anyone on the farm can use.
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The point
A record does not make the store safe.
Good practice does. Software makes the store inspection easy to complete in the yard, hard to forget the gas checks, and quick to hand to the office. A good tool means nobody agitates a slurry store on a still day without the safe procedure in front of them. Slurry gas kills people and livestock most years.
Three risks in one store
Structure, pollution and gas.
Structure
Integrity of the store
Walls, joints, liners and reception pits inspected for cracks, leaks and corrosion. A structural failure is a pollution incident and a drowning risk at once.
SSAFOPollution control rules
The Silage, Slurry and Agricultural Fuel Oil rules set construction and capacity standards for stores. Records show the store meets them and is maintained.
Slurry gasHydrogen sulphide on mixing
Agitating slurry releases hydrogen sulphide in seconds. It can be fatal fast. The safe procedure, ventilation, keeping people and animals clear, is the priority, not the paperwork.
The friction
The inspection that lives in a drawer never happens.
A store gets checked when something already went wrong. A record book in the farm office is not a record until it is filled in, and it never is in a wet week at silage time. The check done in the yard, before mixing, is the one that keeps people alive.
Run farm inspections on WhatsApp
No app install. No training.
Whoever is in the yard uses the phone in their pocket. A voice note about a cracked wall, a photo of a leaking joint. The record generates itself and the farm office sees it at once.
The short version
- A slurry or silage store carries three linked risks: structural integrity, pollution control, and lethal gas released on agitation.
- Slurry gas, principally hydrogen sulphide, is released within seconds of starting to mix and can be rapidly fatal to people and livestock. Ventilation and keeping everyone clear is the core control.
- Stores are governed in England by the Silage, Slurry and Agricultural Fuel Oil rules (commonly called SSAFO), with equivalents across the UK nations, covering construction, capacity and maintenance.
- A structural failure is both a drowning risk and a serious pollution incident, so the structural check protects people and watercourses at once.
- Per-report pricing beats per-seat for a farm business with seasonal and contract labour, because adding people is free.
- The record does not make the store safe. Safe practice does. The record is what the HSE inspector or the environmental regulator asks to see.
The point
What a slurry store inspection is for
Slurry and silage stores hold large volumes of material under pressure that is corrosive, polluting and, when disturbed, dangerous. A regular inspection has one job: to catch a problem, a hairline crack, a weeping joint, a corroded reception pit, a blocked ventilation route, while it is still cheap and safe to fix, rather than after a wall lets go or someone is overcome by gas.
Software does not make a store safe. Safe practice does. What software does is make the inspection easy to complete in the yard, hard to forget the gas and ventilation checks, and quick to get in front of the person who can act. A good tool means the check happens on a routine, not only after an incident, and that the safe mixing procedure is in the operator's hand at the moment it matters.
The gas
Hydrogen sulphide and mixing
This is the risk that kills. Slurry generates gases as it breaks down, and when it is agitated or mixed those gases, especially hydrogen sulphide, are released in a sudden burst. High concentrations can overwhelm a person in seconds, and at the very highest levels the sense of smell is deadened so there is no warning. Cattle in an adjoining building have been lost the same way.
The controls are procedural, not paperwork. Mix only with good natural ventilation, ideally on a breezy day, open the building up, remove all people and animals from the building and the area during and after agitation, never enter a store or a space where gas can collect, and follow the safe system of work for your setup. Quickler can prompt the operator through the safe procedure and record that ventilation was opened and the area cleared before mixing began. It records that the steps were followed; it does not detect gas or replace a gas monitor or the HSE guidance. Check the current HSE farm safety guidance on slurry gas.
The rules
SSAFO and pollution control
Slurry stores are regulated for water pollution. In England the relevant rules are commonly known as SSAFO, from the Water Resources (Control of Pollution) (Silage, Slurry and Agricultural Fuel Oil) Regulations, with broadly equivalent regimes in Scotland, Wales and Northern Ireland. They set standards for how stores are constructed, for minimum storage capacity, and for keeping stores maintained and impermeable so slurry does not reach a watercourse.
A structural inspection supports these duties directly. Evidence that the store was built to standard, is checked on a schedule, and that defects were found and repaired is exactly what an environmental regulator wants to see. Rules and thresholds differ between the UK nations and change over time, so treat this as general information and confirm the current requirements that apply to your holding.
The structure
What the structural check covers
A store structural inspection typically covers the walls and their joints for cracks, movement or leaks; liners and membranes for damage; the reception pit, channels and transfer points; any agitation and pump-out points; covers, guarding and edge protection to prevent a fall or drowning; and the surrounding area for signs of seepage. Above-ground steel and concrete stores, earth-banked lagoons and below-ground pits each have their own failure modes.
The link back to the other two risks is direct: a structural failure empties a store into the environment and creates a drowning hazard, and poor covers and guarding raise both the fall and the gas risk. Quickler captures each item with a photo at the point of observation, so a developing crack is documented and tracked over time rather than noticed too late. A structural engineer should assess anything that looks like real movement or damage; the app records the finding, it does not certify the structure.
Pricing
Per report, not per seat
Most inspection apps charge per seat. A farm business is a bad fit for that: family, employees, relief milkers, contractors and the agronomist all come and go, and you should not be paying a licence for each one just so they can log a check.
Quickler charges per report, with unlimited users on every bundle. Bundles run from Quickler 50 at 50 pounds a month for 50 reports, up to Quickler 500 at 500 pounds a month for 500 reports. Add everyone who works the yard; you pay for the reports filed, not the people who could file them. Pricing is approximate and changes, so confirm the current pricing page before you commit.
Questions, answered
Why is slurry gas so dangerous?
When slurry is agitated or mixed it releases a sudden burst of gases, principally hydrogen sulphide, which can overcome a person in seconds. At very high concentrations it deadens the sense of smell, removing any warning. It has been fatal to farmers and to livestock. The core controls are to mix only with good ventilation, remove all people and animals from the building and area, and never enter a store or space where gas can collect. Follow the current HSE farm safety guidance.
What rules cover slurry stores in the UK?
Slurry stores are regulated for water pollution. In England the rules are commonly known as SSAFO, from the Water Resources (Control of Pollution) (Silage, Slurry and Agricultural Fuel Oil) Regulations, with equivalent regimes in Scotland, Wales and Northern Ireland. They cover construction standards, storage capacity and maintenance. Requirements differ between nations and change; confirm what applies to your holding.
How often should a slurry store be inspected?
There is no single universal interval, but stores should be inspected on a regular schedule and before high-risk activities such as mixing, with structural condition, guarding, covers and ventilation checked. Any significant structural concern should be assessed by a competent structural engineer. Check the current guidance and any conditions attached to your holding.
Can I run slurry store inspections over WhatsApp?
Yes. Quickler's inspection runs over the WhatsApp Business API. Whoever is in the yard receives each item in their existing WhatsApp chat, replies with text, a voice note or a photo of a cracked wall, and the record generates automatically. It can also prompt the safe mixing procedure. No separate app or login is required, and Quickler manages the WhatsApp Business API account on the farm's behalf.