Step 10 · Final Checks and System Purge

With the pump running, watch the pressure gauge. The pressure should rise until it reaches the cut-out pressure (e.g., 50 PSI), at which point the pump should shut off. Now, close the faucet you had open. The system should hold pressure. Open a faucet elsewhere in the house and watch the gauge again. The pressure will drop, and when it hits the cut-in pressure (e.g., 30 PSI), the pump should turn back on. Let the pump run through a few cycles to confirm it is working correctly. Go around the house and open faucets one by one to purge any air trapped in the lines until they run smoothly.

Tools and Materials

Water Source 200 PSI Pressure Gauge with 1/4 in. Lower Connection M2002-4L