There are two methods for improving the operation of the slider top for your HydraPak reservoir:
- Avoid filling the reservoir above the maximum fill line. If you over-fill the reservoir, it will create pressure on it, making the top harder to operate. If you leave some room, the pressure is reduced making the slider operate more easily.
- Apply some food-safe lubricant to the tracks of the reservoir. We recommend silicone, glycerin, or beeswax. Don't use oil-based lubricants, as they can make your system sticky, which makes the slider more difficult to operate. Smear a small amount on the tracks and it will make the slider action much smoother.