The size of the water reservoir depends on the design and type of water flosser. Cordless water flosser reservoirs hold up to 7 ounces, while countertop water flossers hold up to 35 ounces.
Flossing time per full reservoir varies based on the pressure setting and the size of the reservoir. General guidelines are:
- 5 ounces (150 ml) = 30+ seconds of flossing time
- 7 ounces (210 ml) = 45+ seconds of flossing time
- 15 ounces (450 ml) = 60+ seconds of flossing time
- 22-35 ounces (650-1000 ml) = 90+ seconds of flossing time
You can refill the reservoir to extend flossing time.
If any liquid remains in the reservoir when you are finished water flossing, empty the liquid into the sink and allow it to dry.
For hygienic storage, countertop water flosser reservoirs either include a lid or act as a cover when inverted over the unit.
You can add a small amount of mouthwash to the water in the reservoir. (Do not exceed a 1:1 ratio of water to mouthwash). Rinse the unit afterwards by partially filling the reservoir with plain warm water and running it with the tip pointed into the sink.