Inline Dual-Pump Valve Assembly
Submersible pump integration component — the industry's first inline valve assembly enabling true zero-switch dual-pump well operation.
The Simple Pump Inline Dual-Pump Valve Assembly makes true inline dual-pump operation possible in a single well.
This proprietary check-valve tee threads directly into your drop pipe, connecting a compatible submersible pump to your Simple Pump cylinder using standard NPT fittings. When the submersible runs, system pressure opens the valve automatically. When you operate the hand pump, vacuum closes the valve and isolates the submersible.
No manual valve switching. No re-plumbing. No compromises.
The Inline Dual-Pump Valve Assembly is the critical connection component that allows a solar or electric submersible and a Simple Pump hand pump to operate independently in the same well column.
Compatible with Workhorse Narrow Series and other NPT-threaded submersibles. Submersible pumps and hand pump systems sold separately. Manufactured by Simple Pump in the USA and backed by a 15-year warranty.

Do You Need More Water than You Can Physically Pump?
Upgrade from manual pumping while keeping backup capability
Manual Pumping Fatigue
Hand pumping 50+ gallons daily becomes exhausting and time-consuming
Single Point of Failure
Submersible pumps leave you stranded during any power interruption
Emergency Preparedness Gap
When disaster strikes, you need water access regardless of grid status
Don't Wait for Emergency to Strike
The best time to install a backup water system is before you need it. When the power goes out, it's too late to wish you had prepared.
What the Inline Dual-Pump Valve Assembly Is
The Inline Dual-Pump Valve Assembly is a valve component — not a complete pump system. It is the connection piece that installs inline in your drop pipe between a compatible submersible pump and your Simple Pump cylinder, enabling both to operate from the same well with no manual switching.
✓ Included
Simple Pump Inline Dual-Pump Valve Assembly (Valve-1/2-Assy or Valve-1-Assy) + spring check valve. 15-year warranty.
Sold separately at simplepump.com
Simple Pump hand pump system (cylinder, drop pipes, pump head, lever arm).
Available through dealers
Workhorse Narrow Series solar submersible pumps — sized and installed by authorized dealers and Workhorse Pumps installers.
The Valve That Makes Inline Dual-Pump Operation Possible
One proprietary check valve tee. Thread it onto your submersible's suction port and into your Simple Pump cylinder chain. Pressure opens it for the submersible. Vacuum closes it for the hand pump. No switching, ever.
Two independent water systems in one well
Submersible pumps automatically. Hand pump provides manual backup at any time. Both share the same water column without interference.
Universal NPT connection
Valve-1/2-Assy fits ½" FNPT submersible ports. Valve-1-Assy fits 1" FNPT. Works with Workhorse Narrow Series and other standard NPT-threaded submersibles.
15-year Simple Pump warranty
The Simple Pump Inline Dual-Pump Valve Assembly carries Simple Pump's 15-year warranty. Manufactured by Simple Pump — no third-party components.
Retrofit-compatible to 1999
Works with all Simple Pump cylinder sizes (100CA, 125CA, 200CA) and all Simple Pump systems installed since 1999.
Pressure tank capable
Manual pump still pressurizes tanks up to 45 PSI with valve assembly installed.
Manufactured by Simple Pump
Simple Pump's own proprietary product — engineered and manufactured in-house.
Motorized System Specifications
Detailed specifications for the Inline Dual-Pump Valve Assembly. All Simple Pump systems are engineered for reliability and built to last.
Hand Pump Performance
Water When You Need It
Deep Well Access
Reliable water from wells up to 325 feet static water level
Emergency Ready
Manual lever arm configuration ensures water access during power outages
Peace of Mind
Simple Pump Inline Dual-Pump Valve Assembly: 15-year Simple Pump warranty. Simple Pump hand pump components: Simple Pump standard warranty. - Made in USA since 1999
Configure Your Water Security System
Every well is unique. Our experts will configure the perfect manual pump system for your specific static water level and daily water needs.
Simple Pump Inline Dual-Pump Valve Assembly Specifications
Two sizes. Universal NPT connection. Manufactured by Simple Pump. 15-year warranty.
| Model | Thread | Installed OD | Compatible Cylinders | Price | Warranty |
|---|---|---|---|---|---|
| Valve-1/2-Assy | ½" NPT both ends | 2.0" | 100CA, 125CA | [PRICE TBD] | 15 years |
| Valve-1-Assy | 1" NPT both ends | 2.5" | 100CA, 125CA, 200CA | [PRICE TBD] | 15 years |
Material: 304 stainless steel tee + water-grade acetal insert. Manufactured by Simple Pump. Compatible with all Simple Pump systems back to 1999. Spring check valve included.
Workhorse Narrow Series Compatibility
| Workhorse Model | Suction Port | Inline Dual-Pump Valve Assembly | Connection |
|---|---|---|---|
| W2H-5-200 | ½" FNPT | Valve-1/2-Assy | Direct |
| W3H-6-500 | 1" FNPT | Valve-1-Assy | Direct |
| W3C-25-200 | 1.25" FNPT | Valve-1-Assy | With SS reducer bushing |
Workhorse systems require dealer installation: The Workhorse Narrow Series solar submersible system is available through Simple Pump dealers and authorized Workhorse Pumps professional installers. Find a dealer near you →
Spare Parts & Seal Kits
Browse genuine spare parts, seal kits, and maintenance components compatible with your Inline Dual-Pump Valve Assembly.
Typical Maintenance Interval: 5-10 years
Simple Pump systems require minimal maintenance with long service intervals between seal replacements.

Spare Parts Kit (Heavy-Duty)
Replacement parts kit for the Simple Pump heavy-duty handle assembly. Includes critical wear components to restore reliable operation and smooth performance.

Spare Parts Kit (Standard)
Replacement parts kit for the Simple Pump standard handle assembly. Includes critical wear components to restore reliable operation and smooth performance.
Ready to Get Started?
Seeing is believing. Request a detailed quote and our experts will help you configure the perfect Inline Dual-Pump Valve Assembly for your well.
Configure Your Well Pump System
Design the perfect automated pumping solution with manual backup capability. Our experts will configure the perfect system for your specific requirements and provide accurate pricing based on your well specifications.
What You'll Receive
Request a free quote for exact pricing based on your well specifications
Frequently Asked Questions
Everything you need to know about the Simple Pump Inline Dual-Pump Valve Assembly
Have More Questions?
Our pump experts are here to help you choose the right system for your needs.
Manual Backup Options
Add manual pump capabilities for complete water security
Deep Well Hand Pump
Up to 325 feet
Manual operation for static water levels up to 325 feet - the deepest reach of any hand pump
Best for:
Deep wells, backup water source
Shallow Well Suction Pump
Up to 25 feet
Perfect backup solution for static water levels up to 25 feet with pressure tank capability
Best for:
Shallow wells, easy installation
Inline Dual-Pump Solar Well System
Solar + manual backup
Workhorse solar submersible + Simple Pump hand pump. Automated solar water delivery with zero-switch manual backup — no batteries needed for hand pump
Best for:
Solar automation + manual backup, off-grid wells
Not Sure Which System Is Right for You?
Our quick price estimate tool helps you choose the perfect pump based on your static water level, water needs, and specific requirements.
Need personalized recommendations? Our water system experts can help you choose the right solution.
Already Have a Simple Pump?
If you installed a Simple Pump hand pump any time since 1999, the Inline Dual-Pump Valve Assembly is compatible with your existing system. Add submersible capability without replacing your pump.
What “Backward Compatible” Means
- ✓Works with 100CA, 125CA, and 200CA cylinders — every Simple Pump cylinder manufactured since 1999
- ✓Threads onto your existing drop pipe configuration — no new pipe string required
- ✓Your existing pump head, lever arm, and pressure connections remain unchanged
- ✓Manual pumping depth and performance are unchanged after installation
How to Add the Inline Dual-Pump Valve Assembly
- 1Contact your Simple Pump dealer or an authorized Workhorse Pumps installer
- 2Share your cylinder size (100CA, 125CA, or 200CA) and your target submersible model
- 3Your installer pulls the existing pipe string, threads the Inline Dual-Pump Valve Assembly onto the submersible, and reconnects everything
- 4Both systems are operational — your hand pump unchanged, submersible added inline
Add Submersible Power to Your Simple Pump System
The Simple Pump Inline Dual-Pump Valve Assembly is Simple Pump's newest proprietary product — connecting compatible submersible pumps to your Simple Pump hand pump cylinder. Two water sources, one well, 15-year warranty.
✓ Manufactured by Simple Pump • ✓ 15-year warranty • ✓ Compatible with Simple Pump systems since 1999
