AREVERA 12Pcs Self Plant Watering Devices with Valve Control, Automatic Watering Spikes Devices with Slow Release and Anti-Tilt Anti-Down Bracket for Indoor Outdoor Plants Watering Drip Irrigation

These only work with a small bottle (maximum 1 litre ) and only for a few days use. I used a bigger bottle because I was away for 7 days and the weather was warm. They didn't work because the stake wasn't long enough and the tap part was stuck in the soil.

Bought to use in my balcony tubs and pots whilst on holiday for 8 days in predicted heat wave. Thought I had adjusted enough, but set up day before I went and most of water had gone by next morning. Readjusted, but seemed to go faster if tightened too much, before going to nothing. Didn’t use support spikes as didn't really do anything so fixed to railings with cable ties. On returning, hard to see how effective they were as had 12 hours torrential rain day before which could have been reason some of bottles still full! Plants did mostly survive though.

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Loved this product. Have assembled at least 5 water bottles. A very good idea if you are away as you can set the rate of water drips and amount of water you need to keep your plant watered.

Disappointed with these. They were not easy to fit together and some plants did not survive as the drip feed did not work.

Great value for the price, I could esaily install them with regular 2l coke bottles and set the drop number. Saved me the time of chasing somebody who would water my plants. 12pcs for the price, I think it's pretty good.