When to Be Concerned About Rain in Pool Water

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Rain in pool water may seem harmless, but it can have a negative impact on the overall quality of the water in your pool and the health of those who swim in your pool.

The tropical temperatures in Tampa, Florida area make pools the perfect accessory for your home. After your new pool construction, pool remodeling, or custom swimming pool designs are completed, your pool builder should offer you some vital maintenance tips to help keep your pool comfortable and hygienic, including tips for managing rain in pool water.

Part of your maintenance routine includes protecting your pool water from environmental elements like airborne dirt, debris, and plant life. Rainwater is a common pool pollutant that is easily overlooked. Droplets can deposit minerals, microorganisms, and chemicals into your pool that can compromise the safety of your family and friends.

When should you be concerned about rain getting into pool water?

Rain in Pool Water Can Cause Adverse Skin Reactions

One of the more subtle dangers of rainwater in your pool is it affects your pool’s chemical balance. The chemicals used to keep your pool clear of common invaders are dispensed according to volume. When you have excess rain in your water, your chemicals become over diluted. Too much rain makes your additives ineffective, leaving you exposed to dangerous water conditions.

One sign that rain in pool water is negatively impacting your chemical balance is sudden changes in skin reactions from regular swimmers. Without the right protection, harmful algae and other invaders can take root. This can cause those with more sensitive skin to develop rashes, itching, and other signs of irritation after exposure.


Another side effect of a chemical imbalance caused by rain in pool water is discoloration. The same algae that can cause skin irritations can also produce waste that clouds your pool water. Your water may take on a red, green, or brownish tint.

A pool water testing kit can confirm that your discoloration is due to the biological activity rather than a simple spill.

Rain in Pool Water Can Cause a Strange Smell or Odor

As rain falls through the sky, it collects all of the particles trapped in the atmosphere. This includes smog, emissions, and environmental debris from weather activity.

If there is enough polluted rain in your water, your pool could take on a musty odor. It may not be very strong, but the odor can be persistent. If you notice an unfamiliar and unpleasant smell clinging to your hair, skin, or clothing after taking a dip, you might have a problem with rain in pool water.

Chronic or Widespread Illness

Microorganisms in your pool water do more than changing the look and smell. Some species of invaders find their way into your body. This can leave swimmers with symptoms like nausea, vomiting, diarrhea, and other types of gastrointestinal distress. Some organisms can leave behind more serious infections that can cause fevers or find their way into internal organs.
If those who frequent your pool find themselves developing these symptoms several days after swimming, it could point to a problem with rain in pool water.

Protect Your Friends and Family from the Negative Effects of Rain in Pool Water

Having rain in pool water can be a big deal. Protect your friends and family with a good pool maintenance routine. Keep your unit covered when you know inclement weather is approaching.

If you’re looking to add a custom-built pool or spa to your property, contact Larsen’s Pool & Spa today for a no-cost consultation. Contact our customer service representatives at (727) 786-7665 for expert answers to all your pool-related questions.

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