purple water n.— «An alternative to using gray water is treating it with a home sanitizer system to create what’s known as “purple water.” While it’s not safe enough to drink, purple water is considered safe enough for use on...
purple water n.— «An alternative to using gray water is treating it with a home sanitizer system to create what’s known as “purple water.” While it’s not safe enough to drink, purple water is considered safe enough for use on...
