What is cut-in and cut-out pressure?
Cut-in pressure is the lower pressure point where a well pump starts; cut-out pressure is the higher point where it stops. Standard residential settings in Idaho are typically 30/50 psi or 40/60 psi.
In a pressurized well system, cut-in and cut-out pressure are the two settings that tell your pump when to turn on and off. The cut-in pressure is the minimum pressure at which the pump starts running. The cut-out pressure is the maximum pressure at which it shuts down. The difference between these two points is called the pressure band.
A common setting for Bonner County homes is 30/50 psi, meaning the pump turns on when pressure drops to 30 pounds per square inch and turns off once it reaches 50 psi. Another standard pairing is 40/60 psi, which operates in a higher pressure range. These settings are programmed into a pressure switch that monitors your tank continuously.
Why this matters: incorrect cut-in and cut-out settings can cause your pump to short-cycle (turning on and off too frequently), waste energy, reduce pump lifespan, or fail to maintain adequate household water pressure. Hard water, mineral buildup, and age can throw off these settings over time. If your water pressure feels weak, drops suddenly, or you hear your pump running constantly, your cut-in and cut-out pressure may need adjustment or your pressure switch may be failing. Technicians at pressure tank and system repair providers can test and recalibrate these settings to match your home's needs and local water conditions.