Water weight usually dominates total operating load.
POOLS · BASE / SUPPORT
Pool slab and support planning: what the site team must confirm.
A prefabricated pool still depends on a site-specific foundation/support system. The pool supplier can define interface requirements; the local project team must design the actual foundation for the site.
SHORT ANSWER
Use exact pool loads and support geometry as inputs to local foundation design.
Confirm the exact pool configuration, operating water load, frame/support points, allowable tolerances, soil/geotechnical conditions, groundwater and drainage. Then the appointed local structural/civil team can design the slab or support system.
KEY PROJECT POINTS
What should drive the decision.
These are project inputs, not substitute engineering or automatic product approvals.
Support spacing and point loads matter—not just total tonnes.
Groundwater can create uplift/hydrostatic risk around empty pools.
Flatness and level tolerances affect frame/shell support.
Drainage should prevent trapped water around the structure.
Installation/backfill sequence can change temporary support conditions.
Get the exact load path
Total pool mass is not enough. Use the frame/support arrangement and localised reactions from the actual pool configuration.
Confirm ground and groundwater
Soil bearing, settlement, filled ground, groundwater and drainage can drive slab thickness or alternative support design.
Set tolerances before installation
Level, flatness, dimensional set-out and anchor/fixing locations should be documented before the pool arrives.
Coordinate temporary and permanent conditions
Lifting, initial support, backfill, simultaneous filling and access around the pool can create loads/conditions different from final operation.
PROJECT INPUTS
What to have ready before asking for the exact system.
A stronger brief shortens the gap between product interest and a useful technical/commercial response.
Exact pool model/configuration
Empty mass
Operating water volume
Support layout/reactions
Point loads
Slab footprint
Soil/geotechnical data
Groundwater level
Drainage
Tolerance requirements
Backfill/fill sequence
Crane/site access
EVIDENCE BOUNDARY
Supplier support data informs the foundation; it does not certify the site foundation.
Use exact project loads/support positions from the pool system. Local structural/geotechnical professionals remain responsible for soil, slab, settlement, groundwater, seismic/wind where relevant and statutory design.
FAQ
Questions project teams usually need answered.
Can Apollo tell me a universal slab thickness?
No. Slab design depends on exact pool loads, support geometry, soil, groundwater and local design requirements.
Why do point loads matter?
Frame supports can concentrate load into local areas even when the overall average load appears modest.
Should the pool be filled before backfill?
Follow the exact selected system's installation sequence; some systems require coordinated/synchronous fill and backfill.