Whirlpool in summer: tips against algae & overheating

Why special care is needed in summer

A hot tub in the garden is a real pleasure in summer - but this time of year is also more challenging. Algae forms more quickly, the water can become uncomfortably warm and the amount of maintenance required increases with heavy use. If you don't react correctly now, you will soon be struggling with green water, fluctuating values or technical problems. However, this can be easily avoided with the right measures.

Algae in the hot tub - how it forms and how to prevent it

Why algae are a problem, especially in summer

  • Warm water provides ideal conditions for microorganisms

  • Intense sunlight promotes the growth of algae

  • Insufficient water care tips the balance

  • Leaves, skin oils, sunscreen and dirt serve as nutrients

What you can do against algae

  • Keep the pH value and disinfectant constantly in the optimum range

  • Clean the filter regularly and check for blockages

  • Always cover the hot tub when it is not in use

  • Use a special algae prevention agent as an additive in summer

  • Remove visible residues daily with a scoop or cloth

If algae is already visible

  • Carry out a shock chlorination or shock treatment

  • Thoroughly clean all surfaces, nozzles and the edge area

  • Rinse and replace the filter if necessary

  • Let the water circulate and check the values several times a week

Avoid overheating - this keeps the water pleasant

Why whirlpool water gets too warm in summer

  • Direct sunlight heats the water in addition to the heating

  • High outside temperatures prevent the water from cooling down at night

  • Longer pump running times lead to additional heat

  • A dark cover stores solar heat in the water

Tips for temperature control in summer

  • Set the target temperature lower than in winter

  • A water temperature of 28 to 34 degrees is often sufficient

  • Use a light-colored or reflective cover

  • If possible, place the hot tub in the shade or use sun sails

  • In hot weather, open the cover during the day to allow heat to escape

Care and maintenance in summer

Daily and weekly measures

  • Check the water values at least twice a week

  • Clean the filter regularly - more often if used intensively

  • Check the water level, as a lot of water can be lost through evaporation

  • Shower off before bathing to avoid sun cream and dirt

  • Remove leaves and foreign objects from the water daily

Thorough cleaning for summer operation

  • Rinse the pipe system every few weeks with a suitable cleaning agent

  • Clean the edge area with a soft cloth or sponge

  • Check the insulation and seals of the cover for damage

  • Change the water partially or completely if necessary

  • Ensure that the technical room is well ventilated

A hot tub in summer is pure relaxation - if the care, temperature and water quality are right. Algae and overheating can be avoided with just a few simple steps. Check the values regularly, protect the water from direct sunlight and clean the filter consistently. Consciously caring for your hot tub not only ensures clean water, but also extends the service life of the technology and saves costs in the long term.

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