How to resolve the northwest downpipe?

There is a downpipe in the northwest, which can be soundproofed with soundproof cotton. Just use this ceramic cow next to the sewer. Because the bathroom is water, and water takes away the wealth of the northwest. In the Book of Changes, water is a child's divination. In order to prevent water from flowing out, it is necessary to use ugly combinations to resolve it. (Ugly as a cow), buy a green anti-slip mat and spread it on the bathroom floor. Because green is wood, aquatic wood, and wood is the wealth (dry gold) in the northwest.