Pneumatic Fluid Extractor Drainers for Automotive Brake and Clutch and Power Steering Fluid

I was open minded when purchasing this product figuring it may work and it might not and be headed for the trash. The plan for this device is for fluid changes in riding mower hydrostatic transaxle, antifreeze coolant container, brake & power steering fluid and alike. I was not ready for its first job so I took a clean bottle of Mobil 1 full synthetic 10w30 (room temp) and extracted it from the container and it worked perfectly. So basic knowledge is warm / hot oil flows easily and this reinforces to me that this device will accomplish the anticipated tasks to come. I tailored the device by removing the inlet air fitting and connecting a small air regulator so as to reduce the operating 20psi per the documents that came with the unit. The air inlet fitting that was attached to it was clearly overkill for the 20 psi operating pressure and the regulator will allow the ability to monitor and adjust as necessary.Also added a S hook along with the provided hook to hang up and support the product during use. As of now I know it works and can recommend this product and will update & adjust the knowns if necessary. At a under $25 price point to the front door is low risk and the turkey baster thing sucks !

Could not be easier to use. Simply hook it to your compressor via quick connect, set around 20 psi, then open the valve. The pump works smoothly and can create a considerable vacuum. I used it to flush my power steering on my 2000 suburban. Took the reservoir cap off, put some tape over the reservoir neck, poked a hole with a knife, then fed the like from this pump in and ran it. Easy. You could definitely make something like this yourself but for this unit only being 25 dollars, I'd say it's definitely worth a buy.

I recently bought this for DIY brake flush. It worked perfect for that. Plenty of suction power. In fact, more then I had realized. This pump really sped up the process. In hindsight, it was quite easy to assemble, but it didn't feel like that when I first opened it up. You basically get a bunch of parts and you have figure out how they all get put together. Since I had never used it before, it was a bit confusing. Fortunately, I was able to find better images online and used that to help get everything assembled. Feel free to comment to this review if you end up getting this and need help. The only reason I gave it 4 stars is because of the lack of instruction. Maybe the maker of this will read this review and decide to add a tiny paper with instructions. Either way, It's a great pump and worked very well. I would say the size is not so good for larger jobs, but worked perfect for brakes. That's is what I would recommend. For that, it's a good value.

Used it to prime a diesel injection pump and it worked great.

I was skeptical at first, I've used the hand operated vacuum pumps for years. I broke down and picked one up since it wasn't very pricey, and I was very impressed with how well it works. You still have to do a minor manual bleed afterwards, but for changing out brake fluid it exponentially speeds up the process!

I was able to suction the brake fluid out of multiple vehicles with this device, taking only 5 or 10 seconds to completely empty the reservoir. This really is an amazing product for the product, and will be very useful in my garage moving forward.

I am presently sitting on a Kweiny but cannot say I have been entirely satisfied. I would say that it really sucks well. But, I don't feel that I have been shafted, however, I feel that the kweiny is a bit small. Fortuitously I believe the suction head could be better with a larger can on the bottom and this could readily be done with the Kweiny. My sole concern is that it seems under certain circumstances to have an unwanted discharge of brake fluid. This unwanted emission causes me some health concern as it sprays wontanly into the air and surrounding environs. This is remedied easily by catching the outflow in a soft sponge rubber tied over the outlet. Although the kweiny is predominately made of good metal it has no real trigger mechanism. It is either turned on or turned off. This would be a concern but, it is easy to keep turned on as it not too demanding. At the end of the day I guess Ill just live with it's shortcomings. At least it is affordable. On a side note, the suction orifice appears on the face of it to possibly be degraded by brake fluid.

This worked great Honda Accord automatic transmission.Just put in dipstick hole and suck out 2 1/2 qts of old transmission fluid and put 2 1/2 qts back in . I do it every other oil change every 10000 miles car has 103000 miles fluid looks nice and red still