Demand for hot tubs has skyrocketed this year, with eBay citing sales increases of more than 1,000% back in April, price cuts made across the market and many retailers completely selling out online.
But if you were one of the lucky ones who managed to get hold of a tub before the shelves were emptied, it's important to use it safely.
From soothing sore muscles and relaxing with friends, there are plenty of things you can do in a hot tub, but do you know what you should avoid?
All hard-shell and inflatable hot tubs need to use chemicals to make sure the water stays clean and your tub isn't damaged. But not getting the balance right can lead to itchy skin, scale build up and cloudy water.
Test the water after every one to three uses and make sure it's within the following levels:
The high heat of a hot tub can make you sweat. Pair that with a sunny day and alcohol, and it's very easy to become dehydrated.
Signs to look out for include a dry mouth, excessive thirst, dizziness or a headache.
To avoid dehydration and its potential side effects, make sure you're hydrated before getting in, avoid alcohol while bathing and keep a bottle of water to hand so you can top up if needed.
The states: 'If you have a heart condition or have high blood pressure, it's generally advisable not to use spa facilities - including baths, saunas and Jacuzzis or steam rooms. Sudden changes in temperature can put extra strain on your heart and circulation. Before doing these activities, have a chat to your GP.'
The same advice should be followed if you have any other medical conditions that could be made worse by an increase in temperature.
When you're pregnant there's a higher chance of overheating, therefore excessive heat should be avoided so as not to risk any harm to the baby.
The advises pregnant women to avoid hot tubs completely, saying: 'If you're using a hydrotherapy pool, the temperature should not be above 35u00baC. Some hot tubs can be as hot as 40u00baC, so it's best to avoid them.'
You should never take your infant or toddler into the hot tub with you. They can't sweat as well as adults, which makes them more susceptible to overheating.
Older children can go in, but they should limit their use to between five to 15 minutes depending on the water temperature.
Wearing skincare products while in a hot tub will mean your filter needs to work much harder to keep the hot tub clean. It can also affect the pH levels.
Showering before getting in will get rid of oily products, sweat and skin cells and help to avoid any problems.
You should also shower after your soak to wash any chemicals off your skin and prevent any irritation.
General guidance from manufacturers says that healthy adults who are not pregnant can stay in a hot tub heated to 37.8u00baC for around 15 to 30 minutes at a time. Any longer and you risk overheating, and experiencing symptoms such as light-headedness, dizziness or nausea.
You should also be more mindful of the weather. When it's a hot day, you might need to cut your soaks a little shorter or turn down the temperature. And if it's a cold day, make sure you take it easy when you get out as the sudden drop in temperature can cause dizziness.
It might feel like a big bath, but don't use it like one. Bubble bath will cause excessive foam and serious damage to the tub's structure. If you want to add a little more luxury, then you can buy hot tub-specific spa bombs and crystals.
As long as you regularly maintain your hot tub and make sure the chemicals are topped up, the water will be clean enough for general use. However, not all bacteria can be eliminated completely so you're risking infection if you submerge open wounds or cuts.
If you get a wound wet by accident, make sure you disinfect it swiftly.