Review on 🔧 Copap Brake Fluid Bleeder with 4 Master Cylinder Brake Bleeder Adapters - 90 to 120 PSI for Enhanced SEO by Eric Ramen

I just opened this tool and am testing it before trying to use it tomorrow. The included 1-page instruction manual is pretty useless. It says absolutely nothing about connecting to a compressor! WTF! If anything, the instructions seem misleading. There is a video on YouTube that is slightly better, but still not as good. It appears to be identical to the instrument that Harbor Freight sells. I think I found out that you need more than 90psi from your compressor to get a decent vacuum. Also wrap the threads of the bleed screw with teflon tape and apply some lube to the tip of the bleed hole to prevent air from getting into the clear tubing from the bleed screw to the vacuum fluid collection bottle which could make you think you need to continuously air out the brake lines, although the very small bubbles you can see are actually being sucked in through the threads of the bleeder screw. Having bought quite a lot of stuff like this direct from China, I'm very disappointed that they don't want to spend a bit more money to get a real and proper technician or engineer who speaks good English. Write damn instructions for English speaking customers. In any case, I think now that I've done some homework, so to speak, these tools will work very well, and of course it will be much better than manually pumping the vacuum or having someone pump the pedal. And it should be worth the cost of the tool.