In some advanced countries such as in the UK, if your gas bottle need a refill, you can exchange it, and you have a whole new cylinder with gas. You can choose from various vendors affiliated to the two main exchangers in the UK -
Calor-gas and Flogas. If you plan to travel and settle to the UK, you can place a call, and register into the system. You've still saved yourself some money, because a filled cylinder bottle will be delivered to you at no extra charges on logistics. However, it you are just visiting for few days, and you need quick refills for your boats, motor-homes and caravans, take your empty tank to a refill gas station. Some auto-gas may allow you refill your gas bottles, but in the UK, you may find it difficult. Or you could just do the tank-to-tank refill. You could find the retail reseller shops, or illegal refuelling sites. With your POL propane tank, using custom pigtail
(hose pipe). This method uses a POL propane tank with custom pigtail that connects to your cylinder regulator or using your existing POL pigtail in a gas bottle. Can be dangerous. It is for short-term solution. Using a small gas bottle and a POL adapter is also possible.
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In the Middle East, including Africa countries, it is mostly butane or sometimes a mixture of butane and propane. So, there are no regulators, or appliance made specifically for butane use only. Since, it is the mixture of butane and propane, any regulators goes for every type of Liquified Petroleum Gas: propane, butane and LPG. Most British colonized countries uses UK standard regulators, valves and fittings. This means that, if you travel from Nigeria to other Commonwealth nations, you don't have to worry about replacing adapters, valves and regulators. You can often find refills at some petrol stations or locate small retail reseller shops. If you are traveling to these countries, gas bottle refills will be easy to find, but you won't find refill for African type of gas cylinders in European countries. To refill, take your gas bottle to a refilling station or auto-gas along with your adapter system. You can purchase on online. Tank-to-tank method done by cylinder adapter connected to your existing cylinder regulator using custom pigtail.
