This model Waterpik works very well. It has plenty of water pressure and the tank is just large enough for one full cleaning. So far it is a very impressive and effective product at a decent price.
My dentist told me that the Waterpik was 90% more effective than string floss. I had a Waterpik more than thirty years ago and was not impressed but this new version has a powerful pump that cleans between teeth as well as below the gum line.
This waterpik was worth every penny i paid for it i notice the difference in my teeth within days of using it and the price was outstanding. So happy with my purchase.