1 Wear safety goggles to protect your eyes. 2  Never use a plunger if a chemical cleaner is present in the drain; you risk splashing the chemical on yourself.  Never remove a trap with chemicals present; you risk burns to your skin. Call a professional but make certain you inform them of what chemical you used.
Originally Answered: Why is the Moon drifting away by 1 cm each year? Because of tidal forces between moon and Earth. As Earth and moon pull each other, bulges are created on the surface.
The earth itself is also pulled toward the moon but with less strength. This pulls the earth away from the water on the opposite side of the earth, making the water on that side bulge as well. Therefore, high tide occurs on both sides of the planet at the same time. Meanwhile the earth is rotating.