Do we need a check valve for irrigation?

Whether you need a check valve depends on your irrigation configuration and how you're using the Simple Pump system.

When Check Valve IS Required

Pumping Into Pressure

If your irrigation system is pressurized:

• Check valve required - Prevents backflow
• Maintains pressure between pump strokes
• Protects pump from back-pressure

Connected to Pressurized Lines

If Simple Pump connects to existing irrigation piping:

• Check valve prevents reverse flow
• Isolates Simple Pump from system pressure
• Required for proper operation

Elevated Storage Tanks

If pumping to a tank above pump level:

• Check valve prevents drain-back
• Maintains primed condition
• Improves efficiency

When Check Valve May NOT Be Required

Direct to Surface Irrigation

If pumping directly to:

• Flood irrigation
• Open channels
• Non-pressurized distribution
• Immediate use at ground level

Gravity Feed from Pump

Water flowing downhill from pump head:

• No back-pressure to contain
• No reverse flow concern
• Simplest configuration

Bucket/Container Filling

Direct filling for manual distribution:

• No system pressure
• Immediate use
• No check valve needed

Irrigation Configuration Considerations

Configuration A: Pressurized Drip/Sprinkler

Setup: Simple Pump → Check valve → Irrigation main Check valve: Required Notes: Match system pressure capability

Configuration B: Storage Tank → Gravity Feed

Setup: Simple Pump → Storage tank → Gravity irrigation Check valve: Recommended at pump (prevents tank drain-back) Notes: Tank provides buffer and constant head

Configuration C: Direct Surface Application

Setup: Simple Pump → Hose → Flood irrigation Check valve: Optional (convenience only) Notes: Simplest, no pressure involved

Check Valve Assembly Options

Check Valve Gauge Assembly

Includes:

• Check valve
• Pressure gauge
• Integrated assembly
• Easy installation

Standalone Check Valve

For custom configurations:

• Standard 1" NPT
• Various ratings available
• Install per your needs

Other Irrigation Considerations

Water Volume

Irrigation typically requires significant volume:

• Consider larger cylinder (125CA or 200CA) if depth allows
• Motor operation may be desirable
• Storage tank smooths delivery

Motor for Irrigation

For regular irrigation pumping:

• Motor provides hands-free operation
• Timer control for scheduled irrigation
• Float switch prevents dry running
• Solar power for remote locations

Daily Water Needs

Plan your system for:

• Gallons needed per day
• Pumping sessions per day
• Motor vs. hand operation preference

Stock Tank Applications

For livestock watering:

• Check valve at tank (prevents drain-back)
• Float valve in tank (controls fill)
• Motor with timer for automation
• Solar power for remote locations

Installation Tips

Check Valve Orientation

• Install with flow arrow pointing away from pump
• Accessible for maintenance
• Protect from freezing if applicable

Gauge Usefulness

Even without pressure requirements:

• Gauge shows pump is working
• Helpful for troubleshooting
• Monitors system performance

Summary