The Shurflo TSO Shut Off Tank Pressure Switch automatically controls your water delivery pump by monitoring holding tank pressure, preventing overfilling and unnecessary pump cycling. Factory preset to activate at 25 PSI and shut off at 60 PSI, this switch installs on the tank inlet side with an included 2-foot wiring harness for quick integration with Shurflo pumps and transformers.
SPECIFICATIONS
Technical Details
| Manufacturer | Shurflo |
| Switch Type | Tank Pressure Activated Shut-Off |
| Turn-On Pressure | 25 PSI (factory preset) |
| Shut-Off Pressure | 60 PSI (factory preset) |
| Wire Harness Length | 2 feet |
| Installation Location | Inlet side of holding tank |
| Function | Automatic pump on/off control |
| Application | Product water tank pressure monitoring |
INSTALLATION & USE
Setup Instructions
- Mount the TSO pressure switch on the inlet side of your holding tank where it can accurately sense tank pressure.
- Connect the 2-foot wiring harness between the pressure switch, your Shurflo pump, and the transformer following manufacturer wiring diagrams.
- Verify all electrical connections are secure and waterproof before powering the system.
- Test operation by running the pump and confirming it shuts off automatically when tank pressure reaches 60 PSI.
COMPATIBILITY
System Requirements
This Shurflo TSO pressure switch is designed for use with Shurflo electric water delivery pumps in potable water holding tank applications. The switch works in conjunction with 12V DC pump systems commonly found in RVs, marine vessels, and off-grid water systems. Ensure your holding tank and pump system are rated for the 25-60 PSI operating range before installation.
🔧 Mount the pressure switch in a location where you can easily access it for periodic testing, and always install a check valve between the pump and tank to prevent backflow that could damage the switch or cause false pressure readings.
