The magnitude of an earthquake, usually expressed by the Richter Scale, is a measure of the amplitude of the seismic waves. The moment magnitude of an earthquake is a measure of the amount of energy released-an amount that can be estimated from seismograph readings.
Remove rust stains from virtually all surfaces you'll find in your bathroom. Restore porcelain bathtubs and sinks to their original condition, plus keep your toilet rust-free by using Iron Out Automatic Toilet Bowl Cleaner. Toilet Bowl and Water Tank Rust Stains â Use 1/2 cup (125 ml).
Lime A Way is the best stuff to get those stubborn rings off. .just shut off the water supply, which is a valve under the tank, flush the toilet, no more water will run into the bowl then. The just squirt the lime a way in and watch it foam. It will dissolve all the water deposits.