The Thirsty Aspirator
With concern over water usage on the rise, use of aspirator pumps is understandably under scrutiny due to their excessive water consumption. A typical aspirator pump requires 5.7 – 7.6 liters of water per minute to operate.
Assuming an average of 6.6 l/min and an average usage of 3 hours per day, 4 days a week for 10 months a year, one aspirator pump uses more than 190,080 liters per year!
The Vacuum Alternative
The cost of water coupled with the environmental impact of wasted water and solvent pollution need to be considered. Alternatives like oil-free diaphragm pumps offer deeper end vacuum capabilities and higher flowrates, minimal operating cost, and economical purchase price. In fact, operating cost savings realised by replacing a single water aspirator will quickly offset the up-front and pennies/month power costs of switching to an oil-free diaphragm filtration pump, leading to a quick payback period — often less than one year.