Midwest Weather & Your Fiberglass Pool:
Pro Tips to Avoid Damage

When Midwest storms hit or winter snow begins to melt, fiberglass pool owners in Northwest Ohio and Southeast Michigan need to pay close attention. Seasonal weather events bring more than just puddles and runoff—they bring the potential for serious damage to your inground fiberglass pool. Whether you’re a longtime pool owner or recently purchased your backyard oasis, understanding how to protect your pool through these events is essential.

Let’s explore the key things to monitor during heavy rain or snowmelt to keep your investment safe and long-lasting.


Why Weather Events Matter for Your Fiberglass Pool
Midwest weather is unpredictable. Sudden downpours and rapid snowmelt can drastically raise both groundwater levels, surface water around your pool and the pool water. These changes can create hydrostatic pressure around the pool shell. If unmanaged, it can cause bowing, lifting, or shifting due to water pressure imbalances.
 
Monitor Groundwater Around Your Pool
 
 
Know What’s Normal for Your Yard
Every yard has a unique water table. After your pool was installed, its a good idea to establish what a normal groundwater level is for your yard—ideally observed through out different seasons as it does fluctuate. This can be observed utilizing the 8″ sump tube that was installed with your pool.
Knowing this baseline helps you detect when something changes. Heavy rains or melting snow can saturate the ground and cause water to rise around your pool.

In rare cases, typically in yards with extreme grade changes, a 4″ daylight drain may have been installed in Lieu of the 8″ sump tube.

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Watch for Rising Groundwater
Groundwater should NEVER exceed your pool’s water level. Once it gets too high—especially within a couple feet of your pool’s water level—your pool structure could be at risk.

 
What to Do if Groundwater Rises Too Much
You may need to use a sump pump inside of the groundwater sump to remove the groundwater before it causes damage. It’s especially important if your pool area doesn’t drain well or if your yard holds water after a storm.
If you’re unsure how to handle this, you’re welcome to call our office or schedule a service call for an on-site evaluation.
 
Keep Your Pool Water Level in Check
Why Normal Water Levels Matter
During the wet season, many homeowners forget that pool water itself is part of the equation. Your pool should always maintain its normal operating range, whether open or winterized.
 

  • If the water is too high, it can freeze and damage the pool coping or overflow into areas it shouldn’t.

  • If it’s too low, your pool becomes vulnerable to outside water pressure—especially from groundwater pushing inward.

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How to Adjust the Water Level

If the pool fills above the desired level due to rain or melting snow, use a submersible pump to bring it back down.
 
Important: Never drain your pool completely unless instructed by a professional—it creates serious structural risks.
 
When to Call for Help

  • You’re unsure what the right water level is.

  • Your pool water fluctuates quickly after weather events.

  • You see signs of structural stress (like bowing walls or shifting).

We’re here to help. Call or schedule a service call anytime you need guidance.
 
 
Special Tips for Pools with Auto Covers
Maintain the Pump & Float System
If your pool was closed with an automatic cover, now’s the time to make sure it’s doing its job:
 

  • Check that the cover pump and float are operational.

  • Inspect the hose or spout for blockages or ice.

  • Make sure your GFCI outlet hasn’t tripped—a common issue in wet weather.
     

Never Operate Auto Covers Under Snow, Ice, or Standing Water

It might be tempting to open or close your pool cover to check things, but doing so with snow, ice, or water on top can damage:

  • The motor

  • The cover fabric

  • The track system

Instead, remove buildup first and wait until it’s safe to operate.

 
 Winterization Reminders

Make it a habit to check:

  • Power to the pump

  • Float responsiveness

  • That the water is draining properly from the cover surface.

Not sure if everything’s working right? Don’t worry—we can inspect it for you. Just give us a call.

 
 Protect Your Pool, Protect Your Investment

Your fiberglass pool is built to last, but it needs a little help from you—especially when Midwest weather doesn’t play nice.

✅ Monitor groundwater

✅ Keep your water level steady

✅ Double-check your auto cover setup


If anything feels off, trust your instincts. Call our office or schedule a service call. A quick checkup now could save you thousands later.
 
 
FAQs

Q: What should I do if my yard floods near my fiberglass pool?
A: Monitor the ground water sump and use a sump pump to pump groundwater from around pool if necessary. Call for professional advice if needed.
 

Q: What is the ideal pool water level during the off-season?

A: Typically within the normal operating range. Within the range of the skimmer is a good rule of thumb.
 

Q: Why is my pool’s automatic pool cover pump GFCI breaker tripping during wet weather?
A: Moisture may have entered the outlet. Ensure the pump and outlet are dry and properly sealed.


Q: Is it safe to use my automatic pool cover after snow?
A: No. Always clear snow, water, and ice before operating the cover.
 

Call or Email us for questions or to schedule service: 419-567-6657 or Service@419pools.com