Best Practices in Extreme Heat

When the weather turns hot, your hot tub doesn't need to work as hard, and neither do you. The simplest approach is also the best one: turn the temperature down and let nature do the rest.

Set it to 27°C

During a heatwave, drop your set temperature to 27°C. At this setting the water stays cool and refreshing rather than hot, which is exactly what you want when it's warm outside. Your heater barely has to run, the ambient air and sunshine keep the water pleasant, and you'll likely find the tub far more inviting as a cool-down spot than a hot soak.

It also takes the strain off your pump and heater, which would otherwise be fighting against high outdoor temperatures all day.

Keep an eye on a few things

The heat changes a couple of things behind the scenes. A light touch here keeps your water clear and your tub in good shape:

• Test your water more often. Warm water and sunlight use up sanitiser (chlorine or bromine) faster, and more frequent dips add to the demand. Check levels every day or two during hot spells and top up as needed.
• Top up the water level. Evaporation speeds up in the heat, so keep the level above the minimum line to make sure the pump runs properly.
• Use the cover when the tub isn't in use. It keeps debris out, slows evaporation, and stops the water heating up too much in direct sun. If the water ever feels warmer than your set temperature, that's simply the sun at work, and leaving the cover off for a short while will help it settle back down.
• Rinse and check your filter. More use in summer means filters clog faster. A quick rinse every few days keeps the flow strong.

Stay comfortable and safe

Even at a cooler setting, take the usual care. Drink plenty of water, don't stay in too long in strong sun, and supervise children at all times.

That's all there is to it. Set it to 27°C, keep your water balanced, and enjoy the summer.