Fountain Clear prevents algae growth and calcium deposits. It gives your water feature a natural freshness and it will clean its surface. It also removes unsightly calcium deposits and prevents the formation of new deposits. - Fully functional, also in combination with disinfection products - Suited for water features (indoor and outdoor) without aquatic life - Prevents the growth of the slimy biofilm - Long lasting performance Dosage: 1 liter treats 10.000 liters water