Here is one spray that you don’t have to worry about getting tired. The Tornado Ray Jet has no moving parts to wear out.
Assembly
Tornado Ray Jets have a 5 mm threaded inlet for direct connection to 4/7 tube. Alternatively you can purchase the sprays with 60 cm of tube and a connector already fitted, or even complete with a Clip Hammer Stake.
Did you know that the Tornado Ray Jet can also be operated in an inverted position with the Clip Hammer Stake? By doing this, you can have a reduced wetting pattern when your trees are young, and then at a later point, simply flip the Tornado Ray Jet over and you have the full wetting diameter