BACOENG 3 Gallon 4.5 CFM Tempered Glass Lid Vacuum Chamber with Pump, Degassing Chamber Kit for Stabilizing Wood, Degassing Silicones, Epoxies and Essential Oils

I was a little worried about buying this for my resin projects. Seems some of the reviews are hit and miss. I took it out of the box, put in the oil and pulled a vacuum. What you see on the dial in the picture is what it stayed at for the whole time for 24 hours! Never moved. I know I have a good seal and the pump is working. A couple of things...1) It came with a filter (see picture) but the manual doesn't mention where this is supposed to go. FYI the manual is pretty good for the most part.2) Came with oil and the whole bottle filled it to about the middle of the min and max marks but when it was pulling a vacuum I could see either a mist or a bit of smoke coming from the top of the fill cap. Not sure this is normal but it still pulled a vacuum.3) There is a thin mat that comes with it (see picture) but again I have no idea what this is used for.4) The gauge and valve mount are a bit flimsy as it just goes thru the side of the pot and then a nut holds it on. I had to crank mine down a bit to secure it. They do give you extra rubber washers (seals) so if they are damaged you can replace them.All in all it looks well made and works. Came well packaged too. Can't wait to put it to use.

I’ll be blunt. I have three vacuum chambers. All are Bac Eng because the quality is second to none. I have a small one for epoxy, a mid sized acrylic one for short term vacuum and special projects that require visibility. And of course this 5 gallon beast. I use it for storing things that require long term vacuum storage. This chamber was purchased almost a month ago and I pulled a vacuum on it all the way down to -28.5 inHg. I just checked it and it’s reading -28 inHg after all this time. That’s absolutely astounding for a vacuum chamber to hold for that long and barely lose any vacuum. The very thick tempered glass lid is a great innovation and is the reason for the incredibly effective consistent vacuum. Easily one of the best purchases I’ve made in a long time. Highly recommended.

I've been testing this over the past week and it really does work well. I'm using a diaphragm pump with it and I only really need to achieve about -28 inches Hg of vacuum and the combination works well. It has held the vacuum for several days, no problem. It might leak about 0.3 to 0.4 inches Hg/day, but with barometric changes thrown into the mix, it's hard to nail down exactly what the amount might be.I had to contact support to ask them what fittings to use with the included vacuum hose. If you can't supply them with an order number, they just ignore you, which makes NO sense. I gave them the manufacturer part number and they couldn't be bothered to answer this simple question. If you're curious, I measured the fittings and it's a 1/4 inch flare fitting at 45 degrees. Knocked a star for poor support.

Product was well packaged and arrived undamaged. All documentation was present in packaging.Setup was easy requiring only open end wrench to align and tighten gauge/valve package mounting nut on inside of chamber.Glass top and top seal were clean and defect free. Stainless steel tub sealing surface was smooth without dents or scratches. Included hose has tool-free brass connectors w/gasketing. Easy and quick to install/remove. Hose has sufficient length.Liquid filled vacuum gauge was easy to equalize for ambient pressure prior to use with vacuum pump. Equalizing insures proper vacuum chamber readings.Vacuum pump was easy to fill with oil and initial startup was uneventful. Vacuum of 29.5 in.Hg obtained in <3 minutes. Chamber valves were closed, pump shut off and hose disconnected from chamber. Vacuum still at 29.5 in.Hg after 2+ hours. Impressive for a single stage pump.Would recommend to any other customer.

I am of the mindset mistakes happen, but having 3 easy to spot manufacturing errors happen at once is just silly. When I found the pump I ordered was missing the gauge and glass that keeps the oil from spilling out I chalked it up to just a freak mistake. I contacted the seller and after a few days got a response and they issued me a $90 return to buy new pump locally (or they offered to replace it with a new but weaker airpump). I felt like I was loosing some money but was easier then mailing back everything, besides I really loved the design of the tank and the lid, looked very nice.After getting the new pump I hooked it in and realize the entire setup for tank free rotates with no way to safely tighten the nut (seller advised againts it). Also the air release/intake handles were put on backwards so they hit the tank when you try to open them. While on most things I would grin and bare it and try to make this work, this is a tank that could implode if it was faulty so didn't take the risk and refunded whole thing.In short, 3 different manufacturing errors (one of them being completely detrimental). The only good part about this was how nice the tank itself and lid looked and how friendly (but on script) the sellers were. But sellers took about 3 days for each reply which made communication unpleasant. I almost reaordered a new one cause what were the chances of having more defects, but I was too spooked too. I really did wish I could've have used it in the first place.

Product works great.