How To Improve Your Pool’s Circulation

Good circulation is key to a healthy pool environment. Although you might not pay special attention to it while tending to the basin in general, you should be aware of how important it is for the well-being of the pool. While proper water chemistry is vital to keeping the water from getting cloudy and preventing algae from growing, balancing it is not enough. Water circulation is of utmost importance, as it can aid or impede enjoying clean water.

Why is It Important?

There are three tasks it takes care of:

  1. Stagnant water – proper circulation ensures no spot is the pool is left stagnant, with water continuously flowing in and out of the pool. This is also an important step against algae-formation, as the dreaded microorganisms thrive in still waters. By providing continuous water-flow, any pathogen that might appear is taken care of before it can set its roots into the basin.
  2. Chemicals – surely you’ve noticed that depending on the texture of the water chemicals, some dissolve faster in water, while others don’t. This minor feature might cause uneven water balance throughout the basin. Some spots will hold a higher concentration of product, while others might even lack it. This is a double-edged sword as it damages the inner lining, and doesn’t properly balance the water, leading to future complications. A good circulation has this covered, as it will remove hot/cold spots.
  3. Debris – while caring for your pool will keep debris away from it, when you’re not actively removing it, the circulation system can deal with it. The water currents will carry the invaders right into the skimmer, trapping them and preventing their return. Therefore, you’ll be able to benefit from clean water.

How Does It Work?

The entire circuit is not complicated at all, but it requires a few elements to be in total synchronicity with one another. The ‘heart’ of it all is the pump, which actively removes the water from the pool circling it through the entire circuit before returning it. Once the water is removed from the pool, it passes through the skimmer basket and goes through the filters. Here, it would normally return back into the basin, but depending on what other accessories you might have employed – heater, salt chlorinator – its path can be modified.

There are two ways to return the water back into the basin – the traditional way, through the skimmer in through the skimmer and out through the jets, or the modern method. Each way carries with it different advantages and benefits, whereas the first ensures the surface water is continuously moving, and the second, through the ground-placed jets, offers deep-water circulation.

Improving the Circuit

There are a few steps you should follow to ensure proper water flow:

  • Pick the correct devices. Seeing as the pump is a highly important element in the entire process, make sure you select one that can fit the capacity of your pool. A too-small pump will never deliver high performance for a large basin, whereas a too-strong model will be too much for a small-scaled pool. Measure, calculate and pick the right model for your pool.
  • Maintenance is key. Upkeep doesn’t stop to the shell itself, or the water. It must be taken a step forward, as you should care for the filters as well as the pump and plumbing system. Regularly check on their status and make the required adjustments. Change the filter media according to what type you own (cartridge, DE, or sand) to ease the strain put on it.
  • Equipment in storage. If the pool is uninhabited, there’s no need to keep accessories and toys in the water. This will bring unwanted elements directly into the pool, which will make it harder for the system to remove it. Plus, they can get deteriorated by sun exposure, as well, so there’s a second reason to store them correctly.
  • Take the matter into your own hands. There are spots where the water won’t circulate, no matter how strong the pump is. Those are considered ‘dead-zones’ and are a thriving spot for bacteria. Take a brush and weekly scrub the pool in the tight corners, around the stair and ladders, or near the water line and drains. To make it easier, you can employ the help of a robot vacuum, as depending on the unit’s functions it will give a helping hand to the task.
  • Final Thoughts

    Keeping the water moving constantly is another means of ensuring you can enjoy crystal clear water in your pool for a long time. You can adjust how many hours you wish the pump and filter to function, and how you wish the jets to be directed, to provide a thorough and complete flowing circuit. As long as you keep everything clean and you regularly check on it, you’ll have no problem with water flow.


  1. Cathy says:

    What robotic pool cleaner do you recommend I purchase if my pool is 50-feet long?

    • Carl Hudgens says:

      We advise you to go with the Polaris F9450 Sport because it’s not only the best robotic pool cleaner on the market, but because it’s perfect for a pool that measures 50 feet in length as well. With this product at your disposal, you will have a spotless pool without putting any effort into keeping it clean.

  2. Emma says:

    How should I test the swimming pool water chlorine and pH level?

    • Becky Eddinson says:

      One of the most efficient and easiest ways to test for pH and chlorine is to use 3-Way Test Strips. The color pads on the strips are quick indicators for pH chlorine and alkalinity.

  3. Mick says:

    Hello! Should I clean my swimming pool more than twice per month?

    • Becky Eddinson says:

      Hello, Mick! It’s recommended to clean your pool once per week. Whether you use a robotic pool cleaner or a brush that is fitted to a telescopic pole to easily reach all the areas of the pool, you need to take care of your pool at least once per week.

  4. Noah says:

    How often should I clean my pool filters?

    • Becky Eddinson says:

      It depends from filter to filter. However, as a general rule, it’s recommended to take a reading when the filter is clean or clean it when when the pressure rises about 10 psi.

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