How often should I replace the shungite stones, and can the 500g pack last for multiple replacement cycles?

The shungite stones gradually become saturated with adsorbed impurities and should be replaced every 6-12 months for optimal performance. Heavy usage (daily filtration of multiple liters) may require replacement closer to 6 months, while occasional use might extend this period. You'll notice reduced effectiveness when the water no longer tastes noticeably fresher or appears less cloudy after filtration.

The 500g pack is designed to support rotation - you can divide it into two portions and alternate between them. While one portion is actively filtering water, the other can be cleaned and rested. This extends the useful life of each batch and ensures you always have fresh stones ready. Simply rinse the resting stones with clean water every few weeks to prevent stagnation.

To clean the stones, remove them from the water container and rinse thoroughly under running water. For deeper cleaning, you can gently scrub with a soft brush to remove any surface buildup. Never use soap or chemical cleaners, as these residues can affect water quality. After cleaning, rinse again and allow to air dry before returning to service or storage.