The best time to consider muriatic acid is when every other method has failed. If manual tools like plungers and drain snakes, or even commercially available drain cleaners can't get the job done ...

Gold will not dissolve ia muriatic acid alone, although it will be attacked by chlorine. ... Applied to polished metal or wood, they resemble bright brass more than gold.

The correct way to dilute muriatic acid is to add the acid to water, not the other way around. A typical ratio is 1 part acid to 10 parts water. Fill a large plastic container with water and slowly ...