Edited: Leaked after less than a week.
349146
I gave a decent review to this light 3 days ago. The next day, I was checking something in my aquarium where I was using it and discovered it had leaked.  The dome was on securely; it looks like water leaked in where the cord joined the plug where the bulb goes.  The salt water corroded the bulb contacts, leaving the dome filled with black liquid and the light completely useless.  I feel very lucky nothing bad made its way back into the aquarium.

I've purchased three of these lights, though I'm not sure they were all of the same brand.  The first one of these I bought also leaked, but after about a year of use.  The second one worked fine for about two years, then sat unused for a year, and will no longer turn on.  Now this one leaked after about a week of use. Very frustrated because this seems to be the only product I can use for the set up I have.
249702
Started leaking after 2 weeks. Not sure how a plastic bottle can leak but something popped. Water all over my bag
1730295
This item lasted less than a week attached to a air ratchet in a home shop.  Now leaks very badly internally.  Very disappointing.
1578528
This item worked well for a few weeks, then began leaking badly. It needs refilling on a daily basis since the water ends up all over the floor. So now it sits in the garage, unused. We have cleaned the filter and bowl regularly in case of clogs, but that doesn't help. There are no cracks or broken spots that I can find, it seems to be coming out from the reservoir behind the machine. We had the previous model for years with out a problem, so I can only guess that this is an issue with the new design, since lots of other reviewers had the same experience. I wish I had paid more attention to the negative reviews. Read them before purchasing, it could happen to you, too!
3963133
Purchased for a camping trip, I put two bags of ice in the cooler and added about a gallon of water.  Within 30 minutes, the cooler began leaking from the joint where the valve interfaces with the cooler.  I tried pressing the valve assembly inward to try to seat the valve assembly into the cooler body to no avail.

UPDATE: As I was preparing to return the cooler, I noticed a plastic nut on the inside of the cooler which was somewhat loose.  I tightened this nut with two hands and tested for leaks.  Tightening the plastic nut appears to have fixed the leak around the valve.
3721524
Bladder was defective and leaked during normal use. The leak was around the bottom joint where the tube comes out. Found my pack was soaking wet and there was a nice little puddle around the pack soaking into the rest of my pack. The bladder also has a unique plastic taste that isn't horrible, but definitely noticeable. Also, the handle came upside down and had to be readjusted.

Edit: I tightened the bladder very tightly with pliers and glued up the tightening point. Has not leaked yet and survived a LandNav exercise with my company. Mouthpiece falls apart sometimes, but is easy to put together. Changing my one star to four.
1623487
Got about a week's worth of tasty water. Now water tastes like butt. Not great.
2461573
These American Standard toilets (Champion 4 if I recall) seem to have a general problem where they leak through continually causing refill or false flushing.  The fresh water leaks into bowl and then down the drain until tank refills.  I could not fix this with a previous guaranteed 3rd party seal.  I could not fix it with this set after trying for awhile.  The directions seem simple.  With some extra hard tightening, it finally worked.  Its been good two weeks now.
2476654
UPDATE:  BSTPOWER contacted me and provided a replacement. Their customer service was so good that I'm upping my review from 2 to 3 stars. I'm going to try this one and see how it works. If it hold ups, I'll add more stars.

Works as advertised.
Unfortunately, it only held up for about a month. It developed a leak and is unusable.
I don't know if it was the water pressure or the Arizona sun, but I better understand why they are not sold in places like Home Depot. I doubt they are durable enough.
197618
The autoseal is great....until it isn't.  It was truly leak proof for about a month and then started leaking a little.  Very sad.  I'm still on the hunt for truly leak proof water bottles for my family.  Boo.
3045353
It leaked out a tad. Was still sealed. I'm saving it to have on hand. It'll be ok. Could have been caused by altitude.
1717629
REVISED from 1 star to 4. As I suggested would help fix the leak problem, there was indeed a thin translucent washer to seal the leaking joint. Problem seemed to come from by too-vigorous washing to remove any possible mold release left on the plastic parts. When I got the replacement product I observed the washer, covered the drain, and washed. Washer jumped right out. Problem solved. So, is the a less-than perfect design, or did they just not test it with over-enthusiastic user? Either was, the problem might be fixed either with documentation or with an engineering tweak to make the washer more fool (raising my hand) proof.

Hey, and what about its function? It works to instantly to soften a nice bottle, or even a cheap one. Very happy now. Cheers.

PREVIOUS REVIEW
Leaked profusely from the screw-joint between clear and plastic parts. Aerated nicely. Buy it if you don't mind cleanup and losing 15% of your bottle of wine. I applied airplane glue and this seems to hold. Search for "Testors 3509C Testors Plastic Cement Value Pack". Or just return the damn thing./\
2575117
Simple stated: case leaked - iPhone 6S plus gone.  Was in 1' of water for 5 minutes...case appears to have leaked through speaker port. Look elsewhere to Lifeproof, Pelican, or others...
4484147
Started leaking after a week of use. Keeping the product; but will not buy from this company again. The humidifier is very quite, but not as effective as my old noisy one from Walgreen's.
3017281
bottle keeps stuff cold for entire day. started leaking after less than 2 weeks so I can no longer us it in the lunch  bag . I am sending it back try another bottle
953025
Rewriting this after having this hose for a few months.  It lasted only a week.  First the hose by the coupler sprung a leak.  My husband replaced it and it worked for a short time until it just blew the new coupler right off.  This hose just isn't made very well and I had heard that you're not supposed to leave the water on when you're not using it, but if you're only going to go get one of your gardening tools, it should not fall apart.

We didn't buy this from Amazon, but it is the pocket hose.  I loved the idea the minute I heard it.  After I started to use this, it sprung a leak at the connection that fits on the sprinkler nozzle.  My husband went and got a 1/2 inch replacement connector and we replaced it.  I have to admit that it was quite a challenge since the hose shrinks, but we got it on an it works great now.  Maybe if this was made in the U.S.A. there wouldn't be so much of a problem with quality.
4667739
Maybe it is just ours but our plug to keep the water in the pool was deformed.  It leaked from day one but it's been hot.  We wanted our daughter to be able to splash around so when we fill it, it last long enough for that.  (It's a slow enough leak that we didn't return it right away though we probably should have)  If not for that, we probably would have loved it.  It is plenty big enough and seems pretty sturdy.

I can take pictures of it tomorrow