Hi,i'm new here,and i'm from Malaysia.I need some information about drinking water for kidney patient.My friend father is a kidney patient and he need to buy a water filter for his father,doctor recommend he to buy
reverse osmosis system,but what I know R.O. water will filter out all the mineral in the water,so is it R.O.water suitable for kidney patient?
I also need information for the Aquasana AQ-4000 water filter,I check from internet that this is rated no.1 in the USA,so is it really a good water filter?
Thanks.