No, the Water Lynx blocks are designed to release directly into turbulent flow. If water is stagnant, the Water Lynx blocks will swell but not release.
When the water flow increases (for example, due to spring runoff or manual pumping) the hydrated block will slowly dissolve and self-dose to a safe, effective level in the water.
Water Lynx & Soil Lynx, when applied, bind to the soil and/or natural material, such as jute.
Validation of our toxicity statements and environmental impact studies have been conducted by University of Alberta and the University of Guelph and third-party labratories.