Review on 🔧 ARES 1-Liter Vacuum Brake Fluid Bleeder with Hanging Hook and Locking Trigger for Convenient Hands-Free Operation by Jeremy Tang

This device works on the Bernoulli principle. High-velocity air creates a vacuum that draws in brake fluid. The spec says it works at 71psi, but it also works at lower pressures like 55. The real problem with the product description is that it lacks the amount of air needed to create a vacuum. I have a small 6 gallon air compressor that ended up working but had trouble getting the air to flow. According to the compressor spec it's 2.5cfm at 90psi but it can't handle 90psi so I think this bleeder valve is pulling about 3cfm. Even at lower PSI, front braking action was light, closer to the brake pump. But pulling the rear brake is more difficult. So 10 minutes of work for the front and 30 minutes for the back as the hose is longer to pump out more liquid and is also a slow draw.