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.
But we must remember that the moon causes tides on earth (and the earth on the moon). Since the earth turns, the tides cause friction in the bottom of the ocean. This causes a loss of energy. The earth's rotation is becoming slower. In order to conserve momentum, the moon is getting farther from earth.