How to turn on & off BBQ gas bottle. Turning your BBQ off at the gas bottle first is both safer and could save you money.
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How to Turn a Gas Bottle Off – How to Turn a Gas Bottle On

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Home 9 SWAP’n’GO® Blogs 9 How to Turn a Gas Bottle Off – How to Turn a Gas Bottle On

29 Aug, 2023 | SWAP’n’GO® Blogs

In this article:

Learn how to turn on & off BBQ gas bottle. Turning your BBQ off at the gas bottle first is both safer and could save you money.

How to Turn a Gas Bottle Off – How to Turn a Gas Bottle On

Learning how to turn a gas bottle off and then how to turn a gas bottle on again is easy. The main valve of a gas bottle is a hand wheel located at the top of the gas bottle. Turn firmly clockwise for OFF and 2 to 3 turns anti-clockwise for ON.
 
Did you know that turning your BBQ off at the gas bottle first is both safer and could save you money?
 
Many people finish with their BBQ and just turn off the burners.
 
Many do not turn off the gas bottle at all and this is a problem…

How to Turn Off Gas Cylinder:

  1. How to Turn Off Gas Cylinder - How to Turn On Gas CylinderRotate the hand wheel, on top of the cylinder, clockwise
  2. Close by hand only until firmly closed
  3. Do not use tools or overtighten
  4. If you have more than one gas cylinder, be sure to turn both off (as with 45kg cylinders)
  5. For BBQs, turn off all of the burners AFTER you close the gas bottle valve

How to Turn On Gas Cylinder:

  1. Turn on gas bottleRotate the hand wheel anti-clockwise (counter clockwise)
  2. Only open about two turns
  3. Do not open hard to the stop

NOTE:  This advice applies to POL & LCC27 valves used in Australia.  Procedure may be different for other valves in other countries.

Why You Should Turn Off at the Gas Bottle First

In a perfectly engineered world, everything on your BBQ would seal perfectly.

The reality is that gas burner valves and regulator connections can leak.

This is especially true as they wear with age and there can be quite a few valves on a single BBQ.

For example, with a six burner BBQ, there are at least 7 gas seals that must be perfectly seated to avoid leaks.

The leaks can be very small and unnoticeable.

However, over time, a substantial amount of gas could leak out of your BBQ if you do not close the gas bottle valve.

This is why it is a good habit to turn your BBQ off at the gas bottle first.

Why It Is Safer

The safety implications of this are obvious.
 
Gas could accumulate in the area where the BBQ is stored, creating an ignition hazard.
 
This is why you should NEVER store a BBQ indoors unless you remove the gas bottle, storing the bottle separately outdoors.
 
However, if a BBQ is stored correctly, in a well-ventilated outdoor location, the gas from a very slow leak would most likely just dissipate.

How You Save Money

These small leaks can also cost you money
.
If your BBQ sits for days or weeks between uses, a small leak can add up to a substantial amount of wasted gas, not to mention you may have no gas to BBQ.
 
As much as we would love to sell you more gas, we don’t want to see you waste your money!

How to Turn a Gas Bottle Off Safely – How to Turn Off Gas Cylinder

The best practice is to turn off the gas bottle first, when you turn off your BBQ.

This eliminates the possibility of leaks from all of the burners and the regulator connection while in storage.

It also uses up all of the gas remaining in the gas lines so you are safely storing your BBQ with no remnant gas remaining in the unit.

By doing it first, it ensures that you don’t completely forget to close the gas bottle valve.
 
So, you stay safe and save money!
 
Just follow these four steps:
  1. Turn your BBQ off at the gas bottle first by turning the valve clockwise
  2. Close firmly by hand only
  3. Turn off all of the burners
  4. Store BBQ in a well-ventilated outdoor location
NOTE:  This advice applies to POL and LCVC27 valves used in Australia.
This may not be the best procedure with other valves, like the OPD valves used in the USA.
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Hot To Safely Attach or Change Your BBQ Gas Bottle

Connecting & Disconnecting:

Inserting gas regulatorThe male connector of a POL regulator has a reverse or left-handed thread.

So, to detach, you turn a POL valve clockwise and then anti-clockwise to re-attach.

New Type 27 (LCC27) connections have a right hand thread.

So, for the new LCC27 valves you turn it anti-clockwise and then clockwise to re-attach.

For full step-by-step instructions, please see:

How to Attach or Change Your BBQ Gas Bottle

BBQ Gas Leak Test

It is important to regularly leak test your BBQ gas bottle, regulator and hose.
 
Leaks from these items are frequently the cause of BBQ gas fires.

Common Problem Areas

Main Connection:

Most Likely Leak Areas on a Gas Bottle ConnectionThe old standard BBQ regulator in Australia is a POL regulator.

The new standard BBQ regulator is a LCC27 BBQ regulator.

The male connector of the regulator, which screws into the POL gas valve on your gas bottle, may have a rubber O-ring seal or it may rely on a metal to metal contact seal.

You should always inspect the regulator for damage, paying special attention to the connector, which screws into the gas bottle.

Main POL Valve Connection

If it has a rubber O-ring, it also needs to be undamaged.

The connector and the female valve opening should both be clean and undamaged.
 
Pieces of dirt, nicks and scratches can prevent the two components from sealing, resulting in a leak.

Gas Hose

BBQ hose & regulatorThe gas hose is attached to the regulator on one end and the BBQ on the other end.
 
It can become damaged or deteriorate with age.
 
Dogs and other animals can also cause damage by chewing on the dangling hose.
 
Visually inspect the hose for cracking, splitting or other damage.
 
You should replace the hose if it shows any signs of damage or degradation.
 
It is good practice to replace the entire regulator and hose assembly, if it is old enough for the hose to have deteriorated, as regulators also wear with age.

Valve Stem

Valve Stem

In Australia, BBQ gas bottles must be tested every ten years.

The gas valve is changed upon inspection and the valves are expected to last for the full ten years.

However, occasionally the valve will fail prematurely and start leaking from around the valve stem.

This is rare but it can happen.

Please see Gas Bottle-Cylinder Testing Facts for more information on the ten year testing process.

Bleed Screw

Bleed Screw on Gas Valve

The bleed screw is a small slotted screw on the side of the valve that lets gas vapour bleed off during the decanting refill process.

The refill technician opens it during the filling process and closes it, when done.

The screw can develop a slow leak if it becomes loose.

How To Do The Leak Test

This short video (1:00) shows how to do the soapy water leak test

When to Test

The BBQ gas bottle, regulator & hose assembly should be checked for leaks, using the soapy water leak test, every time you reconnect your regulator to the BBQ gas bottle.
 
You should also test after any long period of non-use, such as at the beginning of BBQ season.

Soapy Water Solution

Soapy Water Solution

You will need a soapy water solution to check for any leaks.

Mixing liquid hand soap with water should work fine.  Place the solution in a liquid spray bottle.

It’s a good idea to leave the spray bottle with the BBQ, so it’s always a handy reminder to perform the leak test.

No Ammonia

Your BBQ valve and fittings are made from brass.
 
You must never use any soapy water solution that contains ammonia, when you do your testing.
 
Ammonia can cause brass to become brittle and crack.
 
Be aware that ammonia is found in many pre-prepared glass and surface cleaners, so make sure you read the label before use.

How to do the Soapy Water Test

BBQ Gas Leak Test - Bubbles Show Leaks

Put some soapy water in a spray bottle or a dish.

Turn on the gas bottle without turning on the BBQ.  This pressurises the system.

Next, spray the entire valve, regulator and hose assembly with the soapy water.

Alternatively, you can apply the soapy water with a paint brush, basting brush or it can even be sponged on.

Bubbles will form if there is a gas leak and you may also smell the gas.

You need to test the entire assembly from the gas bottle valve all the way to where the gas hose attaches to the BBQ.
 
When done, rinse with clean water to remove the soap solution.
 
Remember to always test the lot every time you re-connect your gas bottle.
 
If you find a leak, turn off the gas bottle immediately!
 
Do not turn back on or attempt to use the BBQ until the problem is rectified.

Extra Safety Tip

DO NOT leave 9kg gas bottles in enclose vehicle unnecessarilyThe best practice gas safety advice is that gas bottles should only be in a vehicle for the minimum required transport time.

When you do transport a gas bottle, you should consider one added precaution.

After making sure that the valve is firmly closed, you should spray the entire valve assembly to check for any possible leaks, prior to transport.

DO NOT leave BBQ bottles in enclose vehicle unnecessarily.

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Eric Hahn
Latest posts by Eric Hahn (see all)

Steve Reynolds

Technical Consultant

Steve Reynolds is a leading expert in the LPG industry with over 22 years of experience. As part of the national management team at ELGAS, Steve ensures the safe and efficient storage, handling, and transportation of LPG. He serves as the lead investigator for incidents and collaborates with authorities on industry developments.

Steve is a technical advisor to Standards Australia and Gas Energy Australia (GEA), and an active member of the World LPG Association (WLPGA), contributing to global standards and technical reviews. He holds a BSc. (Hons) in Industrial Chemistry from UNSW and has held senior safety and technical roles at ELGAS, making him a trusted authority in LPG safety and standards.