How long to heat pool?

[vimfuego]

Hi All,

First time pool owner here and the weather is starting to get hotter over here now so it's time to take the solar heater out of Winter mode (I think). The solar heater is currently reading about 40degC (100F) up on the roof and the pool is currently 16degC (60F). I don't know how much water the pool holds but it's about 10M (32ft) x 3M (9ft) and I'm guessing about 2M (7ft) at the deep end. The solar pump is rated at 280 Litres Per Minute (4438 GPH).

So I am just wondering, if we have a run of days with warmer weather, how long might it take before the pool gets up to say 22DegC (72F)? (The pool has no cover)

Thanks,
Ross