Review on 12-Pack OZMI Plant Self-Watering Spikes With Slow Release Control Valve - Automatic Irrigation Equipment For Home And Vacation Plant Watering, Adjustable Drip System For Optimal Water Volume by Tom Schuster

I was looking for something I could use to slowly water my plants during a couple of days due to a quick trip. The plants don’t need much water and thinking of using a 8oz or 16oz bottle during my absence seemed to be perfect. As soon as they arrived I put them to the test hoping that the small droplet would last at least a day, but to my surprise the drop is almost equivalent to a faucet leak, and the bottles were emptied in less than a few hours. I tightened the caps differently to see if there was a way to control the water better, but no, the full water bottle still emptied within hours. They do work, but definitely not what I needed.