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Sara Oliver

What Causes An Inground Pool To Pop Up?

Updated: Oct 23





To add value in a home, we all have the inground pool. Being a permanent fixture, it looks aesthetic in the house.


However, under certain circumstances, this structure can pop up or maybe, float.


Due to hydrostatic pressure, poor drainage, improper installation and seasonal changes, an inground pool pops us. Want to read things in detail:


Understanding Hydrostatic Pressure 


The primary culprit behind a pool popping up is hydrostatic pressure, which occurs when ground water builds up beneath the pool and exerts upward force.


When the pressure becomes too great, it can cause the pool shell to lift or “pop” out of the ground.


This is more likely to happen if the pool is empty or has a significantly lower water level, as the water inside the pool usually counterbalances the pressure from the groundwater. 


High water Table: The silent threat 


A high water table is another significant factor contributing to pool uplift. The water table is the level at which groundwater sits beneath the surface.


If you live in an area with a naturally high water table or experience heavy rainfall, the water pressure underneath your pool can increase, leading to the risk of it popping up.


This risk is especially done during the rainy season or when the ground is saturated with water


Poor Drainage Systems


Inadequate drainage around your pool can exacerbate risk of hydrostatic pressure.


If water is not properly diverted away from the pool, it can accumulate around and beneath the structure, increasing the likelihood of uplift.


Properly installed French drains, sump pumps and well maintained landscaping can help manage water flow and reduce the risk of your pool floating. 


Improper Installation: A leading recipe for disaster


A poorly installed pool is far more susceptible to popping up. If the pool wasn’t installed with adequate measures to groundwater such as hydrostatic relief valve, you could be setting yourself up for disaster.


These valves are designed to release built up water pressure beneath the pool, allowing water to flow into the pool rather than pushing it upward.


Ensuring that your pool was installed by a reputable professional with experience in dealing with your area’s specific soil and water conditions is crucial. 


Emptying The Pool: A Risky Move


Draining your pool without considering the surrounding water table is a common mistake that can lead to it popping up.


As mentioned earlier, the water in your pool provides a counterbalance to the hydrostatic pressure from the ground water beneath it.


When you remove that water, the pressure from below can push the pool upward. If you need to drain your pool for maintenance or repairs, it’s vital to do so cautiously.


Consider consulting a pool professional to assess the risk and take necessary precautions, such as temporarily installing a hydrostatic relief valve or performing the work during a dry season.


Seasonal changes and Pool uplift 


Seasonal changes can also impact the likelihood of your pool popping up. For example, during the spring, melting snow and increased rainfall can raise the water table and heighten hydrostatic pressure.


Similarly, during the rainy season, the ground can become saturated increasing the risk of uplift.


Understanding the seasonal patterns in your area and how they affect groundwater levels can help you make informed decisions about pool maintenance and avoid potential disasters. 


Preventing Pool Uplift: Key Steps To Protect Your Investment 


Preventing your pool from popping up requires a combination of good design, proper installation and regular maintenance.


Here are some key steps to consider


Install a Hydrostatic Relief valve: 


This valve is critical for preventing hydrostatic pressure from causing your pool’s to pop up. It allows water to flow into the pool rather than pushing towards. 


Ensure Proper Drainage 


Make sure your pool area has adequate drainage systems, such as French drains and sump pumps, to divert water away from the pool.


Regularly inspect and maintain these systems to ensure they are functioning correctly


Monitor Water levels


Avoid draining your pool without consulting a professional, especially during seasons when the water table is high.


If you must drain the pool, consider temporarily, installing additional relief valves and doing so during a dry period


Seasonal Awareness


Be aware of seasonal changes that can impact groundwater levels.


For example, plan major pool maintenance for times when the ground is less saturated and avoid draining the pool during the rainy season or after heavy snowfall.


Professional Installation:


Ensure your pool is installed by a reputable company with experience in managing groundwater and solid conditions specific to your area.


This can prevent many of the issues that lead to pool uplift.


What To Do If Your Pool Pops up 


If your pool has already popped up, it’s essential to act quickly.


The first step is to get a professional, who can assess the damage and determine the best course of action.


Depending on the severity of the uplift solutions might include.


Reburial 


This involves digging out the area around the pool and using heavy equipment to push it back into place.


Pressure Relief 


If the pool has lifted due to hydrostatic pressure, a professional might install additional relief valves or use  other methods to reduce the pressure.


Repairing Damage 


Popping up can cause cracks or other damage to the pool structure. After reburial or pressure relief, the pool will need to be inspected and repaired to ensure it is safe and functional.


Conclusion 


Understanding what causes an inground pool to pop up and taking preventative measures is crucial for protecting your investment.


Hydrostatic pressure, high water tables, poor drainage, improper installation, and seasonal changes are all factors that can lead to pool uplift.


By being aware of these risks and taking steps to mitigate them, you can enjoy your pool without the worry of it floating away.


If your pool does pop up, don’t panic, act quickly, consult a professional to get it back in place and fully operational.


You know the causes behind an inground pool pop up. Now, how about you get a contractor to get your services done. Let’s say in Kentucky, there would be dream pool spsa, who actually do what they are doing.

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