All Mayne Tall Patio Planters have a removable insert tray which creates a sub-irrigation system. To remove the tray, push down firmly on one corner and lift up on the opposite corner. Due to the variations in the moulding process the tray might be a tight fit. If this is the case a little extra force may be required to pop the tray out.
The trays can also be flipped upside down to create a raised platform for a potted plant. To re-insert the tray tilt on a slight angle and wedge it back into the center of the planter. Similar to the removal, a little extra force may be needed to drop the tray back into position.
The removable tray in some of our planters may be quite tight. Don't be afraid to use as much force as needed to get the tray to pop out of place, the tray will bend and flex around the walls of the planter and this is fine. The material is extremely durable and you will not damage it at all by doing this.
I have attached a video that gives you a good visual of how to remove the tray.