Earlier this week we received an inquiry from 'EarlEbirdE' who asked, "Hi, can I use your well water test kits from watersafe to test for soap in grey water?"
For those unfamiliar with the term greywater, it refers to water from bathroom sinks, showers, tubs, and washing machines that has NOT come into contact with feces. Greywater does NOT come from toilets or from washing processes that remove decal matter from clothing, diapers, cloth materials, fabrics, etc.
In greywater one can expect to find things like bits of dirt, traces of food, grease, hair, soap, detergents and household cleaning products. Greywater taken right from a source may have a dirty appearance but since it lacks fecal contamination it can have other uses besides getting dumped into the sewer system.
Does WaterSafe Well Water Test Kit detect soap?
In a word, "No." The WaterSafe Well Water Test Kit test for the following water quality parameters: E. Coli Bacteria, Iron, Copper, Lead, Pesticides, Nitrates, Nitrites, Chlorine, Hardness and pH... but not soap.
To test for things like soap and soap byproducts you would need to use the services of a water quality lab because to our knowledge, no simple, at-home test exists for soap and/or its byproducts AND you would need a sophisticated means of separating out the various components and contaminants in greywater so that they did not interfere with the test for soap.