Waterpik ION Cordless Countertop Water Flosser: problems, parts and running costs
Checked: 2026-10-22
Summary
Owners note that the reservoir must be removed to fill and the handle is slightly awkward to grip. Running costs are low, consisting mainly of replacement tips every 3 to 6 months. It is a good buy at $90 or less.
Common problems and fixes
- Reservoir filling — reservoir must be removed from the base to fill and should be emptied of leftover water after use to avoid stagnation; no warranty claim needed. [1]
- Handle grip and controls — handle is smaller than standard countertop models and the grip must sit lower to operate the slider; nozzle rotation ring lacks texture, making rotation less tactile; no warranty claim needed. [4]
- Wall adapter omitted — wall adapter is not included in the box with the USB-C cable, requiring owners to provide a 5.0 V DC adapter rated up to 3.0 A; no warranty claim needed. [1]
- Non-replaceable battery — built-in lithium-ion battery cannot be replaced by the owner, and removal at end of life voids the warranty; covered by 3-year limited warranty for manufacturing defects. [3]
Parts and consumables
- Replacement flossing tips (Precision Tip JT-100E, Orthodontic Tip OD-100E, Pik Pocket Tip PP-100E, Implant Denture Tip DT-100E, Plaque Seeker Tip PS-100E) — $10 per 2-pack ($5 each) with Electric Teeth in February 2024; replace every 3 to 6 months by type. [1][4]
Yearly running cost
What a typical owner spends per year on replacement tips (about $10 to $20 annually for 2 to 4 tips) and electricity for USB charging.
When it is a good buy
Priced at $89.99 retail at Electric Teeth in February 2024. Better choices include the Waterpik Aquarius corded countertop flosser (about $85) if permanent outlet access is preferred, or the Waterpik Cordless Advanced (about $100) if portability and travel are priorities.