A fiberglass inground pool is a swimming pool with a one-piece shell made of reinforced fiberglass. The shell is built off-site and then placed into a hole at the installation site. Fiberglass pools are famous for their quick installation, low maintenance, durability, and customisation options. Although they may cost more initially than vinyl liner pools, fiberglass pools often have lower lifetime costs due to their longevity and minimal maintenance requirements.
What is a Fiberglass Inground Pool?
A fiberglass inground pool comprises a single piece of reinforced fiberglass material. The shell is created off-site and then placed into a hole in the ground at the installation site. Fiberglass pools are famous for their quick installation, low maintenance, durability, and customisation options.
Comparison to Other Pool Types
Fiberglass pools have a smoother surface, faster installation, and lower maintenance costs than concrete pools. Concrete pools offer more customisation in terms of shape and size. Vinyl liner pools have a lower initial cost but need more frequent liner replacements and have a shorter lifespan than fiberglass pools. Despite the higher initial cost of fiberglass pools compared to vinyl liner pools, they often have a lower lifetime cost due to their longevity and minimal maintenance needs.
Benefits of Fiberglass Inground Pool
A fiberglass inground pool offers several critical advantages over other pool types:
Quick Installation
Fiberglass pools can be installed in as little as 7-14 days, much faster than concrete pools, which can take 3-6 months. The prefabricated one-piece shell is delivered to the site and set into the prepared hole.
Smooth Surface
The gel coat surface of a fiberglass pool is very smooth, comfortable to walk on, and resists algae growth. This makes them easier to maintain compared to concrete or vinyl liner pools.
Low Maintenance
Fiberglass pools require minimal maintenance, with owners typically spending only 30-45 minutes per week cleaning and maintaining the pool. They don’t require acid washing or resurfacing like concrete pools, nor do they need liner replacements every 7-11 years like vinyl liner pools.
Durability
A well-manufactured fiberglass pool can last 50 years or more. The shell and gelcoat surface are solid and durable. Fiberglass is flexible enough to withstand earth shifting without cracking, unlike concrete.
Compatibility with Salt Systems
Fiberglass pools work well with salt chlorine generators, which can damage concrete and metal surfaces over time.
Built-In Features
Many fiberglass pool designs come with built-in features like tanning ledges, benches, and spas at no extra cost. These features would be add-ons for concrete or vinyl liner pools.
Lower Lifetime Costs
While fiberglass pools have a higher upfront cost than vinyl liners, they often have lower lifetime ownership costs due to their longevity and minimal maintenance needs.
A fiberglass inground pool offers a combination of quick installation, low maintenance, durability, and customisation, making them an attractive option for many homeowners. The long-term benefits often offset the higher initial cost.
Pre-Installation Planning and Site Preparation
Before the actual installation process begins, several necessary pre-installation steps must be taken to ensure a smooth and successful project:
Site Evaluation
The crew will come to the location to check the yard, find the best spot for the pool, and look for any issues or barriers. They will measure the area, inspect for underground utilities, and assess the soil quality.
Permitting and Inspections
Getting the proper permits and arranging inspections with local authorities is essential before installation. The team will assist the homeowner in submitting plans, getting approvals, and scheduling inspections during installation.
Dig Sheet and Excavation Plan
The crew will create a detailed “dig sheet” that maps out the exact excavation area and depth using the specific pool dimensions and shape. This ensures the hole is dug precisely to fit the pool shell.
Arranging Equipment and Materials
The installation team will organise the delivery of the pool shell, plumbing materials, equipment, and other supplies to the site and decide where to place them for easy access during installation.
Preparation for Landscaping and Access
Any needed landscaping or access changes will be done before installation. This might involve taking down fencing, trees, shrubs, or other obstacles to allow heavy equipment access. The crew will also plan how to reduce damage to the lawn and landscaping.
Excavation and Hole Preparation
Once the site is prepared, the excavation process begins. An excavator digs the hole to the precise dimensions and depth specified on the dig sheet. The bottom of the hole is then levelled, and a 2-inch layer of gravel is added to create a stable base for the pool shell.
By thoroughly planning and preparing the site, the installation can be completed efficiently and with minimal disruption to the homeowner’s property. The pre-installation steps ensure the fiberglass pool is installed correctly and meets all safety and building code requirements.
The Installation Process
Pool Delivery and Placement
The prefabricated fiberglass pool shell is delivered to the site on a truck trailer and lowered into the excavated hole by crane or other equipment. Guide stakes, string lines, and laser levels ensure the pool’s accurate placement and levelling.
Plumbing and Electrical Installation
While the pool is being filled with water, the plumbing from the pool to the equipment pad location is connected. At this stage, the electrical system that will power the filtration system and lighting is also installed.
Backfilling and Compacting
As the pool is filled, the space surrounding the shell is backfilled with a mixture of gravel, sand, or crushed dust mixed with cement. This is compacted to stabilise the pool’s structure and balance the pressure inside and out.
Decking and Coping Installation
A concrete beam is poured around the pool to keep it in place. Coping stones are installed using mortar with expansion joints added to the gaps. The decking, which can be concrete or pavers, is also installed using mortar to secure it to the concrete surface.
Final Touches and Inspections
Any finishing touches are added to the decking, and amenities like fencing, lights, and seating are installed. A final safety inspection is conducted to ensure the pool meets all local building codes and regulations before the landscaping is completed and the area is cleaned up.
By carefully following these steps, a fiberglass inground pool can be installed efficiently and with minimal disruption to the homeowner’s property. The pre-installation planning and site preparation are critical to ensuring a successful installation that meets all safety and building code requirements.
Maintenance of A Fiberglass Inground Pool
Maintaining a fiberglass inground pool is relatively easy compared to other pool types, but it still requires regular attention to keep it clean and functioning correctly. Here are the critical aspects of fiberglass inground pool maintenance:
Water Chemistry
- Test sanitiser, pH, and total alkalinity levels at least once a week.
- Maintain proper chlorine or other sanitiser levels on an as-needed basis.
- Adjust pH no more than once per week.
- Test calcium hardness, cyanuric acid, and metals monthly.
- Bring a water sample to a pool professional monthly for a complete analysis.
Cleaning
- Brush the pool walls with a nylon-bristled brush at least twice a week.
- Skim leaves and debris off the surface regularly with a net.
- Vacuum the pool weekly or as needed to remove dirt and debris.
- Clean the filter basket at least weekly and after heavy use.
- Use gentle, non-abrasive cleaners only – avoid harsh chemicals that can damage the gelcoat.
Water Level
- Keep the water level at the midpoint of the skimmer.
- Top up the level with a hose as needed.
- Never drain the pool without professional assistance, as it can cause damage.
Other Maintenance
- Run the filter for at least 6 hours per day during peak season.
- Backflush the filter and clean it regularly.
- Visually inspect for cracks monthly.
- Treat any stains or discolouration with a Magic Eraser or ascorbic acid.
By following these regular maintenance steps, you can keep your fiberglass inground pool looking and functioning at its best for many years. The smooth, non-porous surface requires less frequent cleaning and maintenance than other pool types.
Safety Regulations
Fencing and Barriers
Installing a fence at least four feet high with a self-closing, self-latching gate around the pool area is one of the most effective ways to prevent young children from accidentally accessing the pool unsupervised. An automatic pool safety cover can provide an extra layer of security by acting as a physical barrier when the pool is not in use.
Pool Alarms
While not required, installing a pool or spa alarm is recommended if possible, as it can alert you if someone enters the pool area unexpectedly. These alarms help enhance safety, especially for homes with young children.
Drain Covers
Uncovered drains can create powerful suction that can trap swimmers, leading to serious injury or drowning. To prevent this hazard, ensure all pool and spa drains are properly covered with compliant drain covers.
Electrical Safety
All electrical equipment around the pool must be properly grounded and up to code to prevent shock hazards. Ground Fault Circuit Interrupters (GFCIs) should protect all electrical circuits for the pool.
Supervision and Swimming Lessons
Children and inexperienced swimmers should always be supervised by an adult in the pool. Teaching children how to swim and pool safety rules is also crucial to prevent accidents. Avoid distractions like electronic devices when supervising.
Maintenance and Cleanliness
Keeping the pool and surrounding area clean and debris-free helps prevent slips, falls, and other accidents. Regularly testing and maintaining proper water chemistry is also essential for health and safety.
By following these safety guidelines and local regulations, fiberglass inground pool owners can help prevent accidents and ensure a safe, enjoyable environment for everyone who uses their pool. Prioritising safety is vital to making lasting memories in your backyard oasis.
Environmental Considerations
When selecting a pool type, considering the environmental effects is crucial. Fiberglass pools have various benefits in this aspect:
Less Chemical Usage
Fiberglass pools have a smooth surface that prevents algae growth. This means fewer chemicals are required to keep the water clean, making them a healthier and more eco-friendly option compared to other pools.
Water Conservation
Fiberglass pools are durable and resistant to cracks and leaks. A well-maintained fiberglass inground pool reduces the risk of water loss due to structural problems, helping to conserve water resources throughout the pool’s lifespan.
Energy Efficiency
The insulation properties of fiberglass help maintain water temperature better than other pool types. This can result in lower energy consumption for heating, reducing the pool’s environmental impact and operational costs.
Recyclability
When removing or replacing your fiberglass pool, the old fiberglass in the pool shell can be recycled. This makes fiberglass pools more sustainable than concrete or vinyl liner pools.
Rainwater Harvesting
Fiberglass pools can be connected to rainwater harvesting systems to collect and use rainwater for pool maintenance. By utilising rainwater, homeowners can decrease their reliance on municipal water supplies and lessen their pool’s overall water footprint.
The combination of reduced chemical usage, water conservation, energy efficiency, recyclability, and rainwater harvesting capabilities makes fiberglass pools an environmentally friendly option for homeowners seeking to reduce their pool’s environmental impact. Fiberglass pool owners can enjoy their backyard oasis by focusing on sustainability while contributing to a greener future.
Conclusion
Fiberglass inground pools offer durability, low maintenance, and aesthetic versatility, making them an excellent choice for homeowners. Their smooth, non-porous surface resists algae and reduces cleaning needs. They provide a balanced investment with quick installation, lower long-term costs, and customisable design options.