Hi!
WHAT ARE AIR PIPES FOR PALMS?
Actually, the air pipes installed on all the Date Palm family trees are called the French Drain. They consist of a square of piping with four vertical pipes at each corner at a 45 degree angle. There are a couple of purposes of the French Drain.
The bottom square pipes are perforated with a type of sock or "condom" over it to prevent dirt and debris from entering the pipe. The vertical pipes are connected to the bottom pipes and work to bring air to the roots for ventilation. These verticals are essential to the health of the palms. We see some landscapers completely covering up to tops as it protrudes from the earth. We only cover them up when we are backfilling the hole with clean washed sand then they are opened.
The biggest reason is to check the health of your palm. You can do this by simply putting a broom stick inside and check for standing water. The water should "percolate" and the palm should not be standing in water. If it is, this water will be come stagnant and putrid harming the tree causing mold.
This is date palm literally drowned. The water was putrid and disgusting when we pulled the palm out. The French Drain prevents this from happening.