High-Efficiency water softeners are an Aquatell specialty! We proudly manufacture some of the highest-efficiency water softeners in Canada. High-efficiency water softeners are systems that will minimize both salt consumption and water consumption. Water softener salt efficiency is typically expressed as Softener Efficiency Rating (SER). This number expresses the amount of softening that can be achieved for every pound of salt used. Look for softeners with an SER higher than 4000 and water use less than 25 gallons per regeneration, if you're looking for truly efficient systems.