The media could not be loaded. Most complaints are about it being flimsy, not this one.
Pros: This water pump does what it's suppose to do. Inexpensive. Easy to use. Fast flow rate.
Cons: The inside tubes can come apart when switching jugs. The pump button gets caught on the top edge. Different prices for the same product.
The cup in the video is 30oz

Volunteering for a Scout troop meant gallons of water bottles being carried into a camp site. Now, we brought 2- 5 gallon refillable bottles. Whether for cooking or drinking, we know our water is easy to transport and BONUS the scouts liked the ease of the pump and 'fun' to use, they refilled their water bottles more often so we didn't have to keep reminding them about hydration.

The plastic ring keeps turning and does not tighten at the neck of the 3 gal water container. It fits well but not 100% secure. The mechanism is nice and useful.
I wish there was a way to secure it . It pumps out water but keeps moving/wiggles and feels like it may fall off. I wish if the supplier can replace this with a better piece or are all of them the same?

This pump is for people who don't want to set up a water cooler or crock. I prefer to keep the water jugs on the floor in an unused room, but this means that I cannot just drain the water into a pitcher for the fridge. I received this pump quickly and found the parts were pretty intuitive to assemble: the schematic diagram on the box was unnecessary. I tried pumping water out of a cup into the sink in order to rinse it out, but the pump doesn't work unless it is sealed onto a water bottle. It does not suck water out of the jug, it forces air into the jug which pushes the water out through the spout. This is a clever way to do this as I believe the pump can be more compact. The pump comes with three sections of tube which you screw into the bottom of the unit to carry the water up to the spout. I use three-gallon jugs, so only two sections are needed; a five-gallon jug would require the third section. To install the pump onto a jug, you just push the pump onto the opening with enough force to seal the top of the jug to the rubber gasket. This takes very little effort. Then you just slide the outer locking ring down to hold everything in place. It may sound complicated as I describe it, but it is actually very easy; you can do it in under 10 seconds. When you push down on the plunger you are actually improving the pump's seal to the bottle. Pretty sneaky, eh? When you first try it, you ask yourself, "How can this possibly work?" It does. I did pump out some water to rinse out the pump before actually filling my fridge water bottle, but I rinse or wash all new plastic food items as they are often lightly lubricated for ease of assembly. I pumped out just a few ounces of water for this. All up, I think this is a handy little machine that will save you a lot of effort. You won't have to wrestle with pouring water from a 25- or 40-lb. jug without spilling water everywhere.

Overall does the job for the workplace. The only issue is the final pump needs to be timed just right or else you'll have a huge mess on your hands. After your last pump, tilt to get the final amount of water out into your cup before walking away.