Clearex for Periodic Flushing. Use Clearex to correct the most common cause of crop failture - The buildup of nutrient salt deposits in soils or soilless grow media. High salt concentrations in the soil solution cause a shrinkage of plant cell protoplasm away from the cell wall as a result of osmosis. This condition , know as plasmolysis, can eventually lead to irreversible wilting. Clearex is a scientifically formulated isotonic drench solution, which binds with excess nutrient salts and safely leaches them from the soil. Leaching with tap or deionized water can lead to hyptonic conditions which cause cell lysis with outflow of essential electrolytes and nutrients; this causes tissue damage leading to serious pathogenic disorders such as bacterial and fungal infections.