According to the Mayor of Lanjarón, Mariano Ruiz, the Museo del Agua will definitely – cross-my-heart-and-hope-to-die, sort of thing – will be open before the year is out, although he didn’t mention which year, mind.
In fact, the Mayor said as far as the building work is concerned, it’s all over barring the shouting, with just a few minor touches to be sorted out, as well as testing the water circuits, etc etc.