What Does Rain Do To Pool Water?
The great British weather is renowned for its rain with an extra dash of heavy rain. As we move through winter and start looking forward to a glimmer of spring it’s worth getting to grips with what all this glorious rain is doing to your pool. In eight weeks you might be looking to take your first dip!
Q: What does rain do to pool water
- Changed the PH
- Dilutes any chemicals you may have already added
- Introduces contaminants
- Raises water levels
- Increases algae growth
Rain can affect pool water in several ways, including:
Changing the pH of the water
Rainwater is slightly acidic and can lower the pH of your pool. A pH below 7.2 can cause skin irritation and damage swimwear. We highly advise checking your PH even when you are not using your pool so you can treat it quickly and with fewer chemicals.
Diluting chemicals
Rainwater can dilute the chemicals in your pool, including salt, alkalinity, and calcium hardness.
Introducing contaminants
Rainwater can carry dirt, debris, and other contaminants into your pool. Rainwater that runs off roofs, decks, or ground can also introduce chemical debris and sediments.
Raising water level
Heavy rain can raise the water level in your pool above its ideal level. This can dilute chemicals, and possibly cause flooding or blockages in your pool.
Increasing algae growth
Chemical imbalances in your pool can lead to increased algae growth. Heavy rain can often be the catalyst to a green pool so it’s worth doing regular checks and shock your pool when needed.
How can I prepare for rainfall and protect my pool’s health?
To maintain your pool’s health, you can:
- Prepare before a storm and cover your pool.
- Remove debris and use a skimmer net or leaf rake to remove large debris, and a roller vacuum head to remove fine debris.
- Treat with algaecide
- Super chlorinate pool water.
- Test your water Test your pool’s pH, alkalinity, calcium hardness, and chlorine or sanitizer levels.
Post-storm tip
We also highly recommend avoiding swimming in your pool for at least 72 hours after it rains to prevent recreational water illnesses.
Pre and Post-storm kit
Need extra help post-storm?
Our team is here to help you get your pool back in working order. Contact us today.