Watering your garden should preferably be done with rain water. However, sometimes using tap water is unavoidable. In such a case one should, as with all natural resources, be efficient and sensible.
Ever noticed how a small pinch hole in your garden hose is capable of wetting a large area?
Many commercial sprinklers have 2 things in common: they are expensive and not very efficient. They seem to be designed with the idea of getting a lot of water in the air hoping it will land somewhere where water is required.
This device relies more on pressure than on size, creating a fine sheet of water. This I'ble will show you how to build this very cheap and simple lawn sprinkler and it will show you how to customize you sprinkler by going into some patterns.
If you like my idea, don't forget to vote for me in the "Garden Contest".
Step 1: How to make it.
It's quite simple: a pipe and two legs. Due to the round legs, it slides quite easily over your lawn when you pull the hose (so you don't get wet).
What you need.
An Aluminium tube (OD 10 mm)
2 PVC pipes
How it is made.
Drill a 10 mm hole trough both PVC pipes.
Insert the Aluminium pipe through the PVC pipes.
Saw a notch (more about patterns in the next step).
Plug the end of the pipe.
Connect hose and clamp.
You can rotate the tube in its legs to aim the water curtain at a specific region. Be careful not to point it downward too much or you end up soaking the earth beneath it.
You can make this fairly long (or short) to meet your requirements. Be aware that over a distance you gradually loose pressure. Secondly, very long ones can become weak (you should add an extra PVC "leg" in the middle).