Greywater, simply put, is the water that is left over from things we do every day at home. Things like laundry, washing dishes and bathing all leave behind greywater. This used water is obviously not fit to drink, but it can be used for other things like flushing the toilet and irrigation. It is important to note that while Greywater can be used, it is not the same as blackwater, which is extremely unsafe because of the harmful contaminants it contains, such as fecal matter.


Greywater is regularly used in third world countries that are prone to drought, however, it is becoming a more popular way of conserving valuable water resources here in the United States as well.


There are two distinct types of greywater, treated and untreated. The difference being that while treated greywater can be stored for a time, untreated must be used immediately.


Opinions are mixed when it comes to the use of greywater. There are some who are pro greywater usage for the reason that it can be used as a non-potable water source, both inside as well as outside of the home. Then there are those that object to its use, as they are concerned it would facilitate the spread of disease.


While you may not be too familiar with the term greywater, it’s clear that research should be done if you are thinking that using it would be a good idea in your household. There are several advantages and disadvantages when it comes to using greywater. We will discuss these in our next blog.