The first stage consisted of a complete renovation of the interior of the swimming pool. This was done by replacing both of the existing pool basins with two new, state-of-the art, stainless steel and polyester, overflow type basins. This intervention required the simultaneous demolition of the old poolside areas and the construction of new pool surrounds around the new basins, along with the building of a large underground basement area to house the equipment and installations, completely replacing the existing facilities, which were insufficient for the new requirements.