Hi,
have you checked your fortune element? Even if your kua number is 9 and 9 is related to fire, the fortune element could be totally different (you'll find this information in the level 1 manual).
On the other hand, Feng Shui is not about avoiding things you like. It's about balance. Maybe you need water to find balance...
From a time feng shui perspective (level 3) water features in the right place have a wonderful impact on your finances...
Somewhere in level 1 Marie mentions that water images in the bedroom because water in the bedroom would lead to financial losses as well.
As Shawn has quoted a water feature in the bedroom could lead to a lack of concentration. If you're worried, I would suggest you simply observe the situation and maybe experiment with switching off the sound for 9 days and then evaluate the reaction of the kids.
Good on ya'
Astrid
