Be sure to use fatty, castile soap brands rather than chemical-based detergents.
From the sfgate.com
Castile soap is an oil, so when added to water and vinegar, it floats to the top.
From the latimes.com
Mix three cups white vinegar, one tablespoon castile soap and three cups of water.
From the usatoday.com
A cheap alternative is castile soap, made with vegetable oil.
From the post-gazette.com
Squirt a ring of liquid castile soap around your bath tub.
From the huffingtonpost.com
Next came anointment with castile soap suds.
From the online.wsj.com
Start with a base of castile soap and add 10 drops of lavender, five drops of eucalyptus, five drops of rosemary and five drops of cajuput oil.
From the cnn.com
Certain compound medicines were also called by this name, such as anodyne balsam, made of castile soap, camphor, saffron, and spirit of wine, and digested in a sand heat.