Negative Positive
Title: Deficient Capacity
Review: The WP-100 water reservoir is too absurdly small! Switching the Waterpik off when you're just partially done, removing the tank to refill it, then reassembling the unit -- all this before you can get back to the job -- is tiresome and ANNOYING. That said, this latest model is (1 star) more functional and (2nd star) more attractive than any of Waterpik's earlier fine products.
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