Each Tropf Blumat can control 5 of these distribution drippers and saturate a 40" length - either in a row or around a large plant. In a pressure system, by adjusting the black screw, it's possible to do more than 5 but with a gravity system, usually better to stay with 2-3.

If your plants and conditions are the same, you can also put one Tropf Blumat in the first pot with one distribution dripper and one or two in each plant after that. One customer reported doing this successfully with 25 distribution drippers running off just one Blumat sensor.