I would suggest that you boil the tap water and use for drinking or run the tap water through a filtration process system such as Aqua Guard or Brittanica. Agents are here in Doha who would give you a demonstration and I understand the system costs you around 2000riyals but you have the liberty to pay in installments. But I have seen the demonstration and you would see the difference what a tap water or mineral water (any brand) offers. The results are amazing and am sure that you would forget all this mineral water and opt for this system.

Unfortunately I dont ahve th nos. of these filtration company agent personnel numbers. whenever I get it, I shall surely post it .

cheers

Bob.