Almost there, now, but we noticed that our rented flat has no water filter in the kitchen.
What's the tap water like in DB? Is it drinkable 'straight', or does it need to be filtered first? If it does need filtering, what kind of filters do people use?
DB gets nowadays the same water as the rest of Hong Kong. Before DB had its own water from the reservoir... it was a lot better.
I would recommend that you filter the water. We use the filters you can buy in Wing On, the one that you can screw onto the tap (forgot the brand though).