A water jet pump uses an average 190 000 litres per year
if used for 2-3 hours a day.

An oil-free diaphragm pump performs the same function better and does not use a drop of water!

This alternative saves water, and does not pollute the environment with solvents.

Watch why water aspirators are cheap pumps
with environmental impact & high operating costs

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.


Labotec is offering for a limited time 33% off a NEW KNF Laboport Diaphragm Vacuum pump for your old water jet pump!! Old for new, and an opportunity to save water plus free the environment from solvents.

The Mini Diaphragm Vacuum Pump (Model : N 816.3 KT.18) features a rate of 0.96 m³/h, ultimate vacuum 20 mbar abs, and a PTFE-coated diaphragm for aggressive/corrosive gases and vapours.