Why the UAE pool calendar looks nothing like anywhere else's
In most countries a pool has an opening day and a closing day. In the UAE it never closes, but it does change character completely four or five times a year. From October to April the water sits between roughly 18 and 26 degrees, chemical demand is modest, and a weekly visit is usually enough. From May onwards the water climbs past 30 degrees, chlorine starts disappearing almost as fast as it goes in, and evaporation can pull several millimetres of water out of the pool every day.
The practical consequence is that the same pool needs different service intensity, different chemicals and sometimes different equipment settings depending on the month. The sections below walk through the year in order, because that is how the problems actually arrive.