Try to find out what type of subsoil you have underneath your garden or building before you begin excavating. The UK has one of the most diverse subsoil in the world, so what is beneath your feet in Bristol when excavating a swimming pool is completely different to what is under a lawn in Cardiff or Gloucester.
However liner pools have less leeway in design and are more restrictive in the structure than concrete pools, unless you use “on-site lining”
But are more economical to build and can be installed as:
Very expensive building costs and take a long time to construct because of waiting and curing times of the structure
This is the level where underground ground water (Water table) can fluctuate considerably, depending upon environmental conditions like seasonal wetness, drought even tidal changes.
You sometimes see disused quarry's There’s one at the National Diving & Activity Centre. in Chepstow) that's part filled with water and that is the water table level for that location,
If you are employing outside labour to build and you are overseeing the pool build project, then we suggest you employ the services of a pool builder to advise you on everything from the location, the methods of construction, what pitfalls to look out for, the plumbing system, advice on surrounds and landscaping through to commissioning your swimming pool.
All the above 5 options come with instruction manuals and DVDs