Immersion is not required for structuring or "charging" water, and should be avoided as impurities such as iron in the water can cause oxidation on the magnets and result in staining the quartz.
Avoiding immersion means that you should not place your ARK® crystal in the material you wish to structure. The coherent field emitted by the ARK® crystal enables the user to place their crystal in proximity to the material. If you take your ARK® crystal for a quick swim, or are caught in the rain wearing your ARK® crystal, the quartz should be fine!
ARK Crystal, LLC is NOT responsible for damage as a result of immersion.
The ARK® crystal community has shared some innovative DIY structuring stations.