I purchased the Water Works system after viewing it on the Doctor's web site. After a couple of weeks of using it I ended up having nasty grey discharge and horrible pain. Not knowing that Water Works would cause bacterial vaginosis it took months for my doctor to diagnosis my symptoms. Finally after months I was prescribed antibiotic after antibiotic to fix the aliment related the use of the Water Works System. I live in daily chronic pain. They don't mention that their study size of small study population ensure its safety is a whole 10 people over 4 months. What kind of study is that? They also state to use tap water in their system. Who knows what kind of bacteria you are "cleaning" your vag with. I would highly NOT recommend not using this product as it disturbs your bodies natural flora causing bacteria vaginosis.