Each person's gums are different, the water pressure by your own control, choose the best pressure that you fill comfortable with. Initial use if bleeding, do not be nervous, out of the gums below the congestion, rinse several times will not bleeding. Some users can withstand the pressure of more than fourth level, a small number of users of the gums is not satisfactory, may be less pressure can not afford. Tank must be pressed down, making the fuselage and tank combination, otherwise it will lead to no water or water pressure weakness. Please check whether the tank pressed down hard, so that the rubber box on the ground floor and the rubber plug on the body bite together, or it will not be out of water, many customers ignore this point. Already have dental calculus is the residual food in the mouth can not remove the formation of calcification. Must go to the dentist clinic consultation. Device can not get rid of calculus.
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