How do I keep my pool water clean? – How often should Swimming pool be cleaned?

Keeping your pool clean and fresh is not only a matter of looks but of health and safety. Thus, the cleaning job should focus on both keeping the water free of debris and removing dangerous microorganisms that tend to build up in still waters. It might look difficult, as you will have to perform daily, weekly, and monthly tasks to maintain the optimal hygiene levels, but we guarantee that if you do everything on time, it can turn into a light routine that will reduce the need of repairs on your pool as well.

Pool Maintenance Step by Step

Our guide is designed to help you understand how your pool works and how to keep it clean. To keep it simple and accessible, we have divided the process into 5 simple steps:

Step 1 – Check Chemical Levels

There are two variables that you need to monitor to make sure the water is safe for swimming: the level of chlorine and the pH of the water.

  • Chlorine – is a substance used to keep the water free of germs and bacteria. As the water in the pool is still, the environment is perfect for the growth of these microorganisms, and you should make sure your cleaning substance contains enough chlorine to keep them under control.  On the other side, too much chlorine could affect your skin and health, so everything is, in fact, a thing of knowing how to get a perfect balance. The chlorine values should vary between 1.0 and 3.0 parts per million.
  • PH – measures how alkaline or acidic your water is. The value of the pH influences chlorine’s efficiency and should remain between 7.2 and 7.6.

Step 2 – Adjust Chemical Levels

If chlorine and pH values are out of the recommended interval, there are ways to get them back on track. The process consists of testing the water and adding the right substances to obtain the optimal balance:

  • Adjusting chlorine – if the chlorine level is too low, just add more of it so the germs and bacteria remain under control. However, if you have exaggerated and grossly overcame the upper limit, you should consider changing the water, that could prove dangerous, especially for children, pets, and people with sensitive skin. Your best course of action when you chlorinize the water is to run the pool pump so that it circulates the water and the chemicals are pushed through the filter system better, stabilizing chlorine levels to prevent the aforementioned outcome.
  • Adjusting pH – if the pH is too high, this means your water is too alkaline and you need to add acid to lower it down. The most usual option is sodium bisulfite. On the other hand, if it is too low, you can use sodium carbonate to lower acidity.

Step 3 – Add Algaecide to your Water

When you think about a dirty pool the first thing that comes to your mind is the green color of the water. This phenomenon is produced by algae, which are usually brought into the pool by the rain, wind or even your own swimming equipment. Algae multiply fast if they find the optimal environment, and this usually occurs when the pH and chlorine levels are either too high or too low.

Nonetheless, sometimes even if you manage to keep the chemical levels of the water balanced, algae could find a way to spring and ruin your perfect blue. Furthermore, if not treated properly they can grow to clog your pool’s drains or damage the pump. All these problems can be easily solved if you remember to regularly add an algaecide to your water, which will act upon algae and keep them from taking over your pool.

Step 4 – Clean the Filters

Whether you use manual or automated pool cleaners, you will still need to regularly clean your pump’s filters. The distance between cleanings can be increased if you use a robotic pool cleaner, which includes a filter bag or cartridge and collects most of the debris in the water.

The process of cleaning the filters is called backwashing and should be performed whenever the water tends to get cloudy. Here are the steps:

  1. Turn the power off on your pool. Make sure that the filter is powered off in order to avoid injuring yourself during the process.
  2. Connect backwash hose to the pool’s filter. Place the other end of the hose in the water dumping area (your backyard or an open field)
  3. Adjust the valves. For sand filters, the valve should be set on the “Backwash” section of the engine, while for all the other filters, it just needs to be placed on “Open”.
  4. Power the pool on. The dirty water will be sucked and the dirt will be captured by the filter. When you consider the water is clean enough, just turn off the pool.
  5. Set the valve to “Rinse”, if you are using a sand filter, or press the handle at high speed for other filters.
  6. Check the pressure gauge to make sure your pool is ready to use again.

Step 5 – Skim

Whether you use manual or automated pool cleaners, make sure you keep your pool clean of debris like leaves, branches, and insects. If not removed on time, these elements can ruin your water’s pH and chlorine level and make the water turn cloudy.

How Often Should You Clean Your Pool? Seasonal, Weekly, and Daily Schedules

Seasonal Maintenance

  • Twice a year, clean your pumps thoroughly
  • Give your pool a backwash

Weekly Maintenance

  • chlorineandpHlevels and adjust them to meet the optimal requirements
  • Shock-treat your pool by using a large amount of chlorine
  • Pour algaecide into the water to prevent the growth of algae
  • Clean, brush and vacuum the pool.
  • If the water is cloudy, backwash your pool

Daily Maintenance

  • Remove large debris that may land in your pool
  • Every 2-3 days degrease and clean your filters


Taking care of a pool may seem like a great responsibility, and it is, but this doesn’t mean that it needs to be a drag. If you follow the cleaning schedule and check on your pool every day, the tasks required to keep it sanitized and in good shape will turn into minor chores that can be done in minutes. Plus, your family and friend will be able to enjoy cleaner water that won’t endanger their health.