BWT P-PSC Notice D'installation Et Conseils D'utilisation page 31

MARKING OUT A POOL WITH A CONTINUOUS SLOPED BASE
Diving pit guide marks
The exact positions of the pool and
the diving zone should be marked
precisely on the bottom of the
excavation (chalk, flour or plaster).
Same system as that used for
marking on the surface
MARKING OUT A POOL WITH A DIVING PIT
Repères de guidage
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PISCINES P-PSC 2020/05 - Indice de révision : B - Code : 37101