[header] How to make distilled water [title] Fill a 5-gallon (18. 927 l) stainless steel pot about halfway full with tap water. [title] Place a glass bowl in the water. [step] Be sure it floats. 
The bowl should not touch the bottom of the pot. [substeps] If the bowl doesn't float, remove it from the water and set a round baking rack on the bottom of the pot.