Still using water aspirators for lab vacuum? VACUUBRAND
Each aspirator requires water rushing through at close to 2 gallons per minute (GPM) to produce vacuum. If used just two hours a day, the aspirator will waste 50,000 gallons of water per year. The water wasted by a water jet aspirator to produce lab vacuum can amount to 50,000 gallons per year in typical use – enough to fill three rail tank cars!