Amtrol: Well-X1 System Well Tank & Digital Control

Ready-to-Run Well Tank System

The Well-X1 combines a top-of-the-line Well-X-Trol® with the Guardian CP® digital pump control and protector to provide an easy-to-install, ready-to-run well tank system. It’s the ultimate combination of quality, savings and performance.

Well-X1 Features

Well-X-Trol Well Tank:

  • 150 PSIG Working Pressure. 
  • Patented Turbulator™ and Antimicrobial Liner. 
  • DuraBase® Composite Stand. 
  • 7-Year Limited Warranty.

Guardian CP Pump Control & Protector:

  • Digital Pressure Gauge. 
  • 10 PSIG Min. Differential for City-Like Pressure. 
  • Pump Cycle Control Saves Energy. 
  • Real Time System Diagnostics. 
  • 2-Year Limited Warranty.

Fast, Easy Installation:

  • Simple, 4-Wire Setup. Auto 
  • Adjusts to 115 or 230 VAC. 
  • Pre-Assembled with all Required Fittings.

Well-X1 Specifications


  • Tank: Well-X-Trol with DuraBase Composite Stand 
  • Control: Guardian CP with Mounting Bracket 
  • Pre-assembled Accessories: Tank Tee, Relief Valve and Drain Valve


  • Max. Operating Temperature: 200º F (93º C) 
  • Max. Working Pressure: 150 PSIG (10.3 bar) 
  • Max. Relief Valve Setting: 125 PSIG (8.6 bar) 
  • Warranty – Well-X-Trol Well Tank: 7-Year Limited 
  • Warranty – Guardian CP Control: 2-Year Limited


  • Complete well tank solution for residential water systems. 
  • Can be used indoors or outdoors.

Well-X1 File:

View Installation & Operation Instructions file

Well-X1 Standard Operation

Using a standard 20 psi differential, the Well-X1® can be sized according to the chart below. In this application, the sizing and performance will be similar to a traditional pressure tank and mechanical switch combination.


Well-X1 Constant Pressure Mode

The Well-X1® control allows a narrow differential to provide consistent water pressure. The factory 20 psi differential can be reduced so the cut-in and cut-out pressures are within 10 psi. When installed as a constant pressure system, the chart below should be used to ensure the tank volume is sufficient to provide adequate cycle protection.


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