i use bottles and i push the part with holes in it down on to the soil in the hole i have dug to hold the upside down bottle with pinpricks in the cap. i hope that with the holes pressed aginst the soil the water will be more likely to come out slowy. Tha tis fruit juice bottles and nestea and such. Some times when i get back and refill them sometimes they are full of water when i get back and somtimes all they are empty and i dont know how long they took to empty, still it has worked for a lot of young trees.
Does anyone know how to be sure it works everytime.
It seems to me that coca cola could produce a bottle that has a cap that has the right sized hole in its cap maybe two caps one for drip irrigation and another for the coca cola or maybe there can be a sticky peice of plastic over the hole in the lid to be pulled off when you use the bottle for irrigation.
It would be very good for coca colas name to do something like that, and very good for lots of poor people in dry places.
on the other hand an inventor could perfectionise the sytem and get some money for herself instead of coca cola getting the benefits.
There is a japanese intenational superstore that sells things like stationary and plastic draws for files, that sells a bottle with a tube like a hospital drip tube fixed in the lid of the bottle for you r potted plants. i have not used it yet. agri
rose macaskie.