High Water Table Solutions
Protect Your Pool from High Groundwater Pressure
High Water Table Risks
Groundwater Pressure Can Cause Serious Pool Damage
A high water table can place significant pressure beneath and around a swimming pool, particularly after heavy rainfall or where drainage conditions are poor.
If that pressure is not properly managed, it can contribute to problems such as lifting or “floating” pools, cracking, bulging and movement around the pool structure.
Pool Excellence can assess the site conditions and advise on suitable preventative measures, including the use of hydrostatic relief valves where required.
Hydrostatic Pressure
Groundwater can build up beneath and around the pool shell and place pressure on the structure.
Structural Damage
Excess pressure can contribute to lifting, cracking, bulging or movement of the pool and surrounding areas.
Prevention & Protection
Proper drainage and hydrostatic relief measures can help reduce the risk of costly pool damage.
Understanding the Risk
Why High Groundwater Can Damage Your Pool
Rising groundwater can create hydrostatic pressure beneath and around a swimming pool. Understanding the causes, risks and preventative measures can help reduce the chance of serious structural damage.
Rising Groundwater Pressure
A high water table can place hydrostatic pressure beneath and around the pool shell, particularly after heavy rain, poor drainage or nearby water leaks.
Common Contributing Factors
- High natural water table in the area
- Heavy rainfall or flooding
- Poor site drainage or blocked weep systems
- Draining a pool without pressure relief measures
- Lack of hydrostatic relief valves
Possible Pool Damage
- Uplift or “floating” of the pool
- Cracking of fibreglass or concrete shells
- Bulging pool floors or walls
- Delamination of fibreglass linings
- Movement or settlement of surrounding soil
Prevention & Mitigation
- Install appropriate hydrostatic relief valves
- Ensure proper subsoil drainage
- Avoid emptying pools during wet conditions
- Use well points or sump pumps where required
- Use suitable drainage material around the pool shell
Protect Your Pool Before Groundwater Causes Damage
Contact Pool Excellence for professional advice on high water table conditions, hydrostatic pressure and suitable preventative measures to help protect your pool.