Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean a hot water dispenser [title] Wet a cloth with a cleaning solution. [step] Generally, a mild cleaning solution will do. For instance, you can add a dash of dishwashing soap to 4 cups of water (about a liter).

Ending1: [substeps] In a closed shower, warm water saturates the cloth and will plug up the hot water spots. You can also wet a paper towel with a wet substrate cleaning solution. Ending2: [substeps] Use soap specifically designed for cleaning cloth buckets. Too much salt can contaminate hot water. Ending3: That's it; an unlimited amount. Dip a towel in the solution, then wring it out. Ending4: Mix it up, then dip your rag in it to wet it. [substeps] Skip bleach solutions, particularly on stainless steel.

Answer format: ending1/ending2/ending3/ending4