Yes, you can adjust a standard 30/50 well pump pressure switch to a 40/60 setting, but you must verify that your well pump motor, pressure tank bladder, and household plumbing pipes are rated to handle the higher pressure safely. Callout type="warning" title="Safety Warning": Always turn off the electrical power breaker to the well pump before opening the pressure switch cover to prevent severe electrical shock. To adjust it, remove the cover and tighten the large differential nut (or main nut) clockwise according to the manufacturer specifications. Verification: Monitor the pressure gauge to confirm the pump cuts in at 40 PSI and cuts out at 60 PSI.
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