diff --git a/devices.lua b/devices.lua
index 196d660..2a7afc9 100644
--- a/devices.lua
+++ b/devices.lua
@@ -525,7 +525,7 @@ minetest.register_node(nodename_sensor_loaded, {
 new_flow_logic_register.simple(nodename_sensor_empty)
 new_flow_logic_register.simple(nodename_sensor_loaded)
 -- activate flow sensor at roughly half the pressure pumps drive pipes
-local sensor_pressure_set = { { nodename_sensor_empty, 0.0 }, { nodename_sensor_loaded, 2.0 } }
+local sensor_pressure_set = { { nodename_sensor_empty, 0.0 }, { nodename_sensor_loaded, 1.0 } }
 new_flow_logic_register.transition_simple_set(sensor_pressure_set)