This new instructable was born out of the desire to share with you my new irrigation system that by some time currently use every summer, and that saves me, in my opinion a fair amount of water than with other methods should be wasted.
I don't want to say that this is the best method .... definitely the best is to drip which makes a more uniform water absorption and thus consumption optimization; However this is a absolute zero cost system, as constructed entirely of recycled materials:

The collection bottles were collected in about 3 weeks of water consumption of my family

The connecting tube to the ground consisted of pieces of various recovery tube backgrounds (e.g. old dishwasher drain pipes).

Step 1:

The construction is of an absolute simplicity and is creating a water brake that, instead of ending up in land directly from the bottle, the pipe and, therefore, to the ground, remains for some time "suspended" in mid-air in a kind of temporary tank that allows a slower flow of water with the advantage of a better absorption of as would happen not with a Flash stream.
Another advantage is not just the fact that using the inverted bottle which is a certain height "ergonomic" you can enter the Jet towards the same bottle without waste it going to try the base of the plant with the inevitable waste that occur by launching the water a bit at random towards the base.

As I said the construction is very simple:

It is

1) cut at a certain height the bottle, as you can see in the third figure.

Step 2: Thank With the Loss...

2) create the "tank with the loss".
And here is the "focal" point: to create the reservoir that has a small leak I cut the bottom of the bottle, creating some engravings; the first time executing holes 5, but this was going out too much water; I then opted for 2-3 incisions that allow a maximum flow slow enough, but not too slow.

I then entered the bottom of the bottle so as seen in the figure that is down.

Step 3:

I then inserted the tube that was, coincidentally the right fit.
Finally, fasten the bottles to the posts at the right height I two knotted heights with bottles of the wires.

I had other things to do so that strategically fit each bottle with its drop-tube, which in turn was stuck at the base of the plant at a few centimetres from the base of the plant itself.

In this way it fills up for the first time the tank; you switch to plant adjacent to fill even that and the first to be empty and you can fill it again and so on depending on the water plant.

Step 4:

I proceed to watering this way:
is filled for the first time a tank;

you pass the plant adjacent to fill even that, and in the meantime the first tank to be empty and ready to be filled again, and so on based on the needs the water plant.

A last margin notation: is recommended (to save water), water the plant at dusk or early morning: in this way you have a further optimization of consumption because, especially at dusk decreases evaporation of water which is certainly less at night and day.

A small video finally gives an example of how it all works.

I apologize for the super industry experts for my inevitable inaccuracies since I'm a simple amateur but I would gratefully accept any advice and constructive criticism!

Good watering at all from Torx.