Hi,
Most of the big hyper markets carry it in stock up to mid September.You might not get aquacem, but you will get a alternative to meet your needs it might not be as effective in volume as aquacem but mix it at the manufacturers instructions and you won,t go wrong.We ran out a few years ago and had to buy a unknown make but it did the same job. Sorry I can,t remember how much it was but that in my terms it was not expensive, other wise I would have remembered.
Have a good holiday,
(don,t forget the loo roll)
Rob