⚠️ Avoid if you have PVC pipes with old glue joints – very hot water can soften connections. Works best on metal or modern PVC.
For minor clogs caused by soap scum or hardened grooming products, boiling water is the simplest remedy. High temperatures melt the fatty acids in soap and liquefy solidified oils. Slowly pour a full kettle of boiling water directly down the drain in two or three stages, allowing the heat to work for several seconds between pours. Note: This method is only suitable for metal pipes; if you have PVC piping, use hot tap water instead to avoid softening the plastic joints. Chemical Agitation: Baking Soda and Vinegar
The mixture will fizz and bubble; cover the drain with a stopper or a heavy plate for 15 to 30 minutes to force that pressure down into the pipes.