How to Maintain a Clean Pool in Hot Weather

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It’s time to roll out the beach balls and dive into your swimming pool’s clear, cool waters. But maintaining a clean and healthy pool becomes more challenging as temperatures rise. Fear not, as this comprehensive guide will teach you all you need to know about keeping a clean pool in hot weather. Let’s dive right in!

Understanding The Effect of Heat on Your Pool

Before we start, it’s crucial to understand why hot weather is a potential challenge for pool maintenance. High temperatures can create an environment conducive to algae growth, promote rapid chlorine evaporation, and potentially damage your pool equipment.

Regular Pool Cleaning: The Key to Sparkling Water

Skim, brush, and vacuum

First things first, routine cleaning is essential. Start by skimming the pool surface daily, particularly after windy days when debris will likely blow into the pool. Brush the walls and floor of the pool at least once a week to prevent algae buildup. Vacuuming should be done weekly to keep the pool floor clear of debris.

Regular filter maintenance

Your pool filter is a frontline defender in maintaining a clean pool. It’s essential to clean the filters regularly and change them as needed. Check the manufacturer’s instructions for cleaning schedules, but typically, it’s best to clean them every 4-6 weeks during the summer.

Balancing Your Pool Chemistry: A Delicate Dance

Regular testing

Testing the water chemistry is crucial, especially in hot weather. As temperatures rise, chlorine evaporates faster, and bacteria and algae grow more rapidly. Regular testing of pH, alkalinity, and chlorine levels will help keep your pool clean and safe.

Adjusting chemical levels

Maintaining proper chemical balance in your pool is vital. If your pH, alkalinity, or chlorine levels are off, your pool can quickly become a breeding ground for bacteria and algae. Keep your pH between 7.4 and 7.6, your alkalinity between 100 and 150 parts per million (ppm), and your chlorine level between 1 and 3 ppm. If levels are out of these ranges, chemicals can be added to adjust them. Always add chemicals according to the manufacturer’s instructions, and allow time for them to circulate before retesting.

Shock your pool

Occasionally, you may need to “shock” your pool – a process of drastically raising chlorine levels for a short time to kill bacteria and “reset” your pool’s chemical balance. This is particularly important after a heavy rain, a large number of swimmers, or during a heatwave.

Keeping An Eye On Pool Equipment

Regular inspection

Heat can also affect pool equipment like pumps, heaters, and filters. Regularly inspect your equipment for signs of wear and tear, and be vigilant for any unusual noises or decreases in performance.

Equipment repairs and upgrades

If you notice any problems, don’t ignore them. Minor issues can quickly escalate into costly repairs if left unchecked. Ensure any necessary repairs are made promptly. Consider upgrading older equipment to more efficient models that can better handle hot weather demands. 

Additional Tips to Beat the Heat

Use a pool cover

A pool cover is a simple and effective way to reduce evaporation, keep debris out, and maintain your pool’s temperature.

Stay hydrated

While this isn’t directly related to pool maintenance, staying hydrated while performing these tasks in hot weather is essential. Remember, safety comes first!


Hot weather doesn’t have to spell disaster for your pool maintenance routine. You can ensure your pool stays clean, safe, and ready for summer fun with extra attention and care.

Remember, our team at Mokupuni Pool Service & Repair is here to help with your pool cleaning, repair, and upgrade needs. Don’t hesitate to contact us if you need help maintaining your pool in hot weather. Happy swimming!


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