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PREPARING THE LAND
EN
The recommendations about the construction for completely or partially in-ground pools are effective in the context of an installation in land which is not humid.
You should conveniently adapt the basic instructions to avoid the restrictions related to the type of land (clay for example) or to the excessive presence of water
in the ground, (sources, run-off rainwater...). In order to avoid any excess humidity in your land, you should install a draining system under the pool, and around
it by building a decompression well. In all cases, an adapted draining system is necessary to avoid water stagnation with the possible consequences of ground
contamination including the deterioration of the structure (rooting of the wood, deformation of the structure...) To guarantee quality planning, you can consider any
information from a specialist as very important.
In order to avoid any excess humidity in your land, you should install a draining system under the pool, and around it by building a decompression
well.
PARTIAL OR COMPLETELY IN-GROUND INSTALLATION
According to the nature of the land, you should install a peripheral drainage and connect it to a decompression well. The well will be excavated before the
construction of the pool to avoid that the excavations fill with water during the works. It should be near the pool, a few centimetres lower than the deepest point
of the same and reach up to the surface. The decompression well is located at the most humid point. It acts as an overflow in the case of water infiltrations or clay
soil, starting from the fact that water rises quicker through a tube than through the soil.
PREPARATION
• Excavate the land with the shape of the pool and of figure 3.
• You should level the land (tolerance of 1 cm over the longest diagonal).
• Place a 10 cm layer of stabilized gravel between 31,5 and 60 mm diameter over a geotextile blanket (not included).
• Lay a plastic film (Polyane - not included) before pouring the concrete.
Natural
Anti-roots or felt
ground
Geotextile
blanket
Layer of
stabilized gravel
Protection and
alveolar draining roll
of HDPE
Respect the direction of the alveolar
protection roll, with the bubbles
against the wall, to allow the wood
to "breathe".
Peripheral
Descompression
Watertight
drainage
wel
film
Wood frame
Draining gravel
ø10-30
Fig. 5
Concrete
l
slab
1
2
Fig. 6
1- Wood frame
2- Roll of alveolar protec-
tion an drainage of HDPE
33
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