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The Home Depot

Why is My Pool Water Slimy?

Pro Referral > Home Guides > Pool and Hot Tub > Why is My Pool Water Slimy?
Why is My Pool Water Slimy?

If relaxing in the cool refreshing waters of your swimming pool is your favorite summer pastime, you certainly want to maintain your pool and have clean and refreshing water. One of the most common factors that might cause undue aversion to the same could be sliminess of the pool water that develops all of sudden and simply refuses to disappear. Either the water could become slimy or the walls might develop an abnormal slipperiness. In most cases, sliminess in pool water happens because of algae, mold, and bacterial infestation, which needs to be controlled immediately. Apart from the fact that a slimy pool can ruin the pleasures of a refreshing swimming experience, it could also be a cause of a host of health hazards.

  1. In most cases, sliminess in pool water is on account of algae, mold, and bacterial infestation, which needs to be controlled immediately.

    1.Why is a Slimy Pool Dangerous?

    According to facts furnished by the Center for Disease Control and Prevention, fecal borne bacteria, which is the leading cause of pool sliminess, is also largely responsible for pool related illnesses in the United States. A single case of bacterial contamination is enough to pollute a large water-park pool. Besides, algae infestation, that causes discoloration and sliminess in the water, also accounts for poor visibility, making safe swimming difficult. As per the National Drowning Prevention Alliance, drownings caused due to meager visibility in the pool is the prime cause for deaths for kids between 1 to 4 years of age. Therefore, if your swimming pool has turned slimy, it needs immediate attention.

  2. 2.What could be the Causes for Sliminess in a Pool?

    Before attempting solutions to end this problem, it is essential to find out what is really going on. To begin with, you need to know more about the various types of molds and algae that cause sliminess, so you can understand how to control them. Some of the common forms have been listed below:

    1. 1. Algae—If the pool water is slimy and has developed a greenish hue, it is certainly because of an algae infestation. Algae flourishes in stagnant water and keeping these bacteria at bay could prove to be a daunting challenge. A frequent use of algaecides or pool shocks should do the trick. Also, elevating the pH value of the water well above 7 could deter algae growth.
    2. 2. Incorrect Usage of Chlorine—Wet chlorine is slimy. However, chlorine is on the list of essential chemicals to be used in pool water. Therefore, you need to know how to use it! Always wear gloves when handling pool chemicals. And remember, never add water into chlorine. Always add chlorine into water.
    3. 3. Pink Slime—Typically, a pink slime is a form of bacterial overgrowth in the pool. It will flourish in areas of the pool that experience reduced water circulation. If this happens, your pool would have to be scrubbed down vigorously with a hard brushing tool. Once you have scrubbed thoroughly, make sure you add a sanitizing chemical. Remember, pink slime will never disappear on its own even in cold climates. They would simply become dormant and resurface the following summer! You need to handle this problem sooner rather than later before it encompasses your pool.
    4. 4. White Water Mold—The white water mold is quite like the pink slime. However, it resembles something like a drenched tissue paper, once it is dropped into a pool or large body of water. It is considered to be a type of fungus or mold. Quite like the pink slime, you can remove it by a completely scrubbing your pool and then followed by a pool shock. White water mold also flourishes in water with limited circulation, just like pink slime. In fact, pink slime would often be found along with white water mold.
  4. 3.What if the Walls are Slimy Too?

    If the walls of your pool have developed extreme slipperiness and sliminess, it could be due to lack of pool maintenance. Apart from shocking and scrubbing, which needs to be performed regularly, you could also consider adding algaecide and cleaning the filter at regular intervals. You might also be required to perform a basic water testing activity with the aid of strips in order to determine the levels of water chemistry and to maintain the proper balance.

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