This is a very difficult question to answer, It really depends on how
pure and clean your water is. Depending on the country where you live,
the water’s purity can be different.
I am now presuming that you are living in the United States of America,
most tap water from a municipal supply in this country is clean enough
for enemas. If you live in a rural area where well water is used than
you need to have the water tested for bacterial and chemical
So I hope that this answers your question. If your are taking
frequent enemas then add salt to the coffee solution otherwise
you can skip the salt.