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.
It is slowing down mainly due to its rotational energy being transferred to the moon. The gravitational interaction between the earth and the moon result in the earth slowing down (by a TINY amount) and the moon's orbit getting more distant. The more distant the moon becomes, the less effect it will have on the Earth; but less and less never equals zero.