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.
Because the earth revolves around the sun, the moon incidentally makes the same trip. I remember reading somewhere an analysis to the effect that, because of the moon's mass and distance from the earth, it is, in fact, in orbit around the sun.