Search online for drain cleaning tips, and you will find no shortage of home remedies. Baking soda and vinegar, hot water, salt, even yeast are all common suggestions. Some of these tips are safe and can help with small clogs. Others can do more harm than good, especially when used on outdoor stormwater drains rather than indoor plumbing. This guide looks at popular natural drain cleaning methods, explains which ones actually work, and shows which ones can damage your pipes o