Defect 6 of 9

6 of 9 supplied water tanks ran out (water running within a few hours completely). Others keep the water for days on end, so that the plants die of thirst with attached water tank.
Following test I subsequently made: put Bördys with water to the brim in a glass. Result as above: in some, the water rushes through, others are practically waterproof and give little water.
So that's a nonsense, because of, give off as much water as the plant needs ....

Conclusion: for me practically useless, unreliable