With the majority of the UK in a ‘hard water area’ these issues are all too common in swimming pools and are often attributed to fluctuations in pH and also to the high water temperatures that pool owners seek to operate at.

To remove scale, you can reduce the water level (check for water table issues prior to doing this) and use Decalcit Super to remove it from the walls and floor.  Alternatively, you could prevent the scale formation in the first place by making Calcinex® part of your start up and regular maintenance regime.