New concrete may look finished while still carrying moisture, weak laitance, curing residues, blowholes, honeycombing or uneven sections. Cracks, construction joints, penetrations and transitions also need to be clearly identified before the interior finish is installed.
Readiness is not determined by a nominal number of days alone. The shell must meet the pool design and lining-system requirements, and the pool builder or designer may need to confirm it has been released for surfacing. Actual substrate condition is then checked after preparation.
The extent and location of the visible problem
The condition of the surrounding pool surface
Likely causes and the most suitable repair approach
Concrete changes as it cures and dries. Shrinkage can create fine cracks, while placing and finishing can leave laitance, form-release residue, voids, honeycombing or variable surface strength. Rain, groundwater, incomplete drainage and retained construction moisture can also affect the substrate.
Movement joints may be intended to remain active, while penetrations or other details may not yet be complete. These details must be treated in accordance with the pool design. If weak, contaminated, excessively damp or moving areas are lined without being recognised, the bond and continuity of the applied system can be compromised.
Fibreglaze coordinates with the builder or designer where required, then assesses the exposed shell for moisture, surface soundness, cracks, joints, penetrations and tolerances. Laitance, contamination and weak material are removed, and blowholes, honeycombing, cracks and irregular areas are repaired and levelled to suit the project.
Once the substrate is confirmed suitable, the Enduratec System is installed as a fully bonded, continuous reinforced fibreglass lining. Structural details or movement joints that must remain active are resolved separately in accordance with the pool design and final agreed scope.
These photographs show preparation and repair stages from projects involving this pool problem. The exact approach is confirmed after inspection and once the pool has been emptied and the shell condition is exposed.
Every pool is assessed individually, and the precise repair depends on the shell, substrate and site conditions. Where repair is suitable, the work generally follows five stages—from confirming the scope through to the reinforced lining, finish and handover.
We review the pool design, builder information and photographs, then arrange an inspection where required. Curing, moisture, laitance, cracks, joints, penetrations and tolerances are considered. The shell must be released for surfacing before the exposed concrete is assessed and the final preparation scope confirmed.
Laitance, contaminants and weak surface material are removed, and the concrete shell is mechanically prepared to create a clean, properly keyed substrate. Steps, fittings, penetrations and construction details are checked, while cracks, blowholes, honeycombing and irregular areas are clearly defined for repair.
Cracks, voids, honeycombing and surface irregularities are treated according to their condition and the pool design. The shell is repaired and levelled to a consistent profile, while movement joints or details that must remain active are addressed separately in accordance with the project requirements.
A fully bonded reinforced fibreglass lining is applied across the prepared concrete shell, following the pool’s walls, floor, steps and details to form one continuous interior. Additional reinforcement is incorporated where the design or repairs require it, creating the foundation for the selected finish.
Two UV-stabilised AquaGuard top coats are applied in the selected colour, followed by the chosen speckle finish. Once cured, the new pool interior, fittings and penetrations are inspected. Guidance is then provided for filling, initial water balancing and ongoing care before the pool enters service.
Tell us when the shell was placed, who is coordinating the build and whether curing, drainage, penetrations and other trades are complete. Age alone does not establish readiness; surface strength, moisture, cracks, joints and tolerances must be assessed before lining.
New concrete pool readiness enquiry
Age alone does not confirm readiness. The concrete needs to meet the pool design and lining-system requirements, with moisture, curing, laitance, cracks, penetrations, joints and surface tolerances assessed before work begins. Weak, contaminated or excessively damp areas can affect the bond of an applied finish. Fibreglaze should coordinate with the pool builder or designer to confirm the shell is released for surfacing, then mechanically prepare and test the actual substrate rather than relying only on a nominal cure date.
Yes. A purpose-built fibreglass lining can be installed over a suitably cured and prepared concrete pool shell. The concrete structure remains in place and the reinforced lining is formed on site to follow its shape, steps and details. The shell must first be assessed for moisture, laitance, cracking, penetrations, construction joints and surface irregularities. Defects and active movement details are treated before the fully bonded lining and selected colour finish are installed.
Not automatically. The reinforced fibreglass lining is intended to form the continuous water-retaining interior, but it still requires a suitably designed, cured and prepared concrete shell. Moisture, laitance, cracks, penetrations, construction joints and any active movement details must be assessed and treated for the project. Any membrane, sealer or waterproofing admixture already proposed should be disclosed because its compatibility and bond with the lining need to be confirmed. The pool builder or designer and Fibreglaze should agree on the substrate and junction details before surfacing starts.
The programme depends on the pool type, condition, access and repairs found after it is emptied. Draining, preparation, drying, repairs, installation, curing and refilling are separate stages, and weather can affect several of them. Pools with osmosis, failed coatings, loose tiles or concealed damage usually need more time. The pool should not be refilled until the installed system has reached its required cure and the contractor confirms it is ready. Ask for a project-specific programme rather than relying on a generic number of days.
Send us a few photos and our team can help identify the likely issue and the most suitable next step.
