Earthworks; Introduction; Creating The Excavation; Material Quantities - BWT myPOOL POOL'N BOX Instrucciones De Montaje

5.

EARTHWORKS

5.1

Introduction

After determining the ideal position for your pool (preferably, orient the pool so that skimmers face into
dominant winds), start with the excavation required to accommodate the concrete slab that will seal in the
support braces and form the base of your pool. Seek the assistance of a professional if required.
Never backfill under the pool to achieve a level surface, the layer of stone bedding and the slab must be
seated on stable ground.
In this section on earthworks, information provided takes into account the plant housing and the drainage
system required for an in-ground or partially in-ground installation. For an above-ground installation, the
plant housing and drainage system are not required. The excavation and the slab will be rectangles,
6900 mm long and 3190 mm wide.
5.2

Creating the excavation

5.2.1 Material quantities

The quantities of materials required are shown in the table below
Estimated volume of stone bedding
Geotextile surface area (pool floor)
Polyane surface area
Theoretical length of the Ø80 mm drain
Rebar
Slab, 15 cm thick
Protective membrane for in-ground walls (rolls 1.5 m high)
Backfill
The materials and quantities listed are for guidance. The concrete slab under the pool must be built in
accordance with the rules of the art.

5.2.2 Excavation

Dig out an area, the length and the width of which should correspond to the length and width of the inner
walls of the pool increased by 0.55 m around the entire periphery of the pool, that is, 6.90 x 3,19
For an above-ground installation, so that the slab is flush with the ground, excavate to a depth of 0.26 m.
For partially in-ground installations, the depth of the hole is determined by the installer. For
example, to sink the pool 1 m into the ground (leaving 33 cm above ground), the hole should be
1.26 cm deep.
To install the pool fully in-ground (bottom of the coping flush with the ground), the hole should be 1.56 m
deep.
Take care, these measurements may be greater if the moisture content of the wood is high when the
pool is installed (wood stored in a humid or poorly ventilated area).
The structural dimensions and measurements listed have a tolerance of +/- 3% (European standard
EN 16582-1). The AFNOR AC P90-321 agreement allows the following deviation in terms of depth:
For a depth greater than 1.25 m and less than or equal to 1.65 m: +/- 5 cm.
12/48
2021/02 - Version: D Code : 37311
2.5 m
3
20.5 m²
20.5 m² polyethylene sheet
20.5 m
22 m
3.5 m
3
21 ml
10 m 10/20 rolled gravel
3
WOODEN POOLS BWT myPOOL POOL'N BOX
20/40 gravel
non-woven felt
PVC
ST25C rebar
C25/30 concrete
polyethylene