UGA Automatic Plant Watering Device 16 Packs, Plant Water Dispenser, controllable Automatic Watering Device, Outdoor Indoor Flower Pot Drinker

I thought these would be great but my first problem was finding the right size bottles for water. Many don't fit. Second problem was tryin to fill the bottle since it has to have holes in the bottom. Third problem was finding the right "drip rate" and getting it to be stable. Finally trying to keep the filled bottles from toppling over was an issue. Still, it does solve a way of getting water to a pot plant without access to water. You just have to work harder than it looks!

They kind of work--meaning they work until they get stopped up with dirt in the little tube. It seems like I am constantly cleaning them out. But, they do work great when they are not stopped up. I have not yet figured out how to prevent this from happening. I do use them. Just wish I had maybe some small tubing to prevent the dirt from getting into the spigot.

Regular water bottles (US) do not fit, is there any specific bottle to use?

Not exactly what I had in mind, but ok. I don't think you'll be able to use a 2L with this, because it'll fall over.

It either drips a lot or not at all - was going to use while we were on vacation for a week or so, but it didn't function - one was drained within an hour, another was still full when I got back

I tried using it on a 16 oz water bottle and it did not fit. I wish you would mention what size of a bottle you need.Because of this I had to date you 3 and go out and get larger bottles.

I would give these watering devices a higher mark if they used standard US size bottles. It took me a long time to find the right size bottles (Walmart Club Soda (33.8 oz) then the devices work very well.

This isn’t a horrible product. It’s really just not user friendly. I have a few plants I just want a drip on and I can only make it all (steady stream) or nothing.