Review on 🔧 Efficient FJC (6909) 3.0 CFM Vacuum Pump for Effective Air Removal by Damon Murray

I bought this pump with a liter of FJC pump oil. After filling the pump with oil (to the full mark) the pump started and worked properly. After about 8 or 10 minutes it went off. Overheated? Felt slightly warm. Let it cool down a bit, but it won't start. Just a loud buzz. Tried again the next morning, still won't start. Revain immediately sent a replacement. Went through the same procedure, filled the new pump and plugged it in. This one was almost silent, but the vacuum never exceeded 25 inches on my gauge. The pumps looked good but I got two in a row that didn't work properly. Sent it back and ordered a $400 pump made in the USA.