Step 4 · Prepare and Pre-charge New Tank
Unbox the new pressure tank. Locate the air valve (Schrader valve) on top of the tank. Use a tire pressure gauge to check the factory pre-charge. For a system with a 40/60 PSI pressure switch, the tank's air pressure should be 38 PSI (2 PSI below the 40 PSI cut-in). Use a bicycle pump or air compressor to add or release air to reach this exact pressure. Next, take the roll of Teflon tape and wrap the male threads on the tank's water inlet 3-4 times in a clockwise direction. This ensures the tape tightens as you screw the tank in.