Plant Self Watering Spikes with Slow Release Control Valve, Automatic Watering Devices Constant Pressure, Vacation Plant Irrigation Waterer, Watering Bulbs for Bottles, Self Watering Sticks, 6PCS

These are terrible. I went on vacation and installed one of these in both of my house plants. A liter size empty bottle fit perfectly. When I got from being gone a week, one of my plants completely dead and although the waterer was functioning when I left, it had stopped shortly after because the bottle was still full. That plant was gifted to me. Do NOT buy these.

Mine had gaping holes in the plug and so water spilled everywhere whenever I inverted the bottles. After several tries and several different bottles, I gave up. Throwing this thing away.

They seem like they are working great and then I check back in a day and they have stopped working. Once I give the knob another twist it starts working again, but I’m a little worried about leaving on a trip with these.

No matter what setting, it empties out by the next day. Useless

These are terrible. They would have been much better if designed with a thread. By just placing on top, it is almost impossible to get a balance to where the bottle doesn’t topple over

It’s good for a 4days trip since my pot is pretty big.Downside is the valve takes a while to get a good drip. Once you got it and you will have a constant water flow.

It was either no drip or it emptied the bottle too fast

I was missing the regulating valves...🙁