Visual and environmental impact

A new and original idea of covering the inside of the swimming pool with a black liner.
It was chosen for the following reasons:

environmental impact:
it brings the mind back to the old water collection tanks that used to be used in the country to water the fields or for laundering, or for the farm animals to drink from.

visual impact:
the dark bottom and the clear water together create a reflection similar to that of a mirror; the sunshine creates many glittering reflections when the water is rippling and, when the water is still, it reflects the clouds and the surrounding trees …and by night the moon.

thermal effect:
the temperature of the water is slightly higher thanks to the greater heat adsorption by
the dark colour of the liner.