If you’ve ever struggled with inconsistent water flow, leaks, or inefficient filtration in your swimming pool system, you’re not alone. Many pool owners overlook a small but critical component: the Haywood Filter And Pump Plumbing SP723 2 Way Ball Valve. This compact yet powerful valve plays a pivotal role in directing water flow between your pump and filter—ensuring optimal performance, energy efficiency, and long-term system health. In this guide, we’ll break down everything you need to know about this essential part, from installation to troubleshooting.
What Is the Haywood SP723 2-Way Ball Valve?
The Haywood SP723 is a high-quality, 2-inch PVC 2-way ball valve specifically engineered for use in residential and commercial pool plumbing systems. It’s commonly used to control water flow between the pool pump and filter, allowing you to isolate sections of your plumbing for maintenance, winterization, or repairs—without draining the entire system.
Unlike standard gate valves that wear out over time, ball valves like the SP723 offer quarter-turn operation, superior sealing, and minimal pressure drop. According to the Pool & Hot Tub Alliance (PHTA), using properly rated valves can reduce system strain by up to 15%, extending equipment life and lowering energy bills.
💡 Did You Know? Ball valves are named for their internal spherical disc (“ball”) with a bore through the center. When aligned with the flow, water passes freely; when rotated 90°, it shuts off completely.
For more on valve mechanics, see Ball Valve – Wikipedia.
Why Choose the Haywood SP723 Over Other Valves?
Not all ball valves are created equal—especially in harsh pool environments exposed to chlorine, UV rays, and constant water pressure. Here’s why the SP723 stands out:
✅ Key Advantages:
- Corrosion-Resistant PVC Construction: Won’t rust or degrade like metal valves.
- True 2-Inch Internal Diameter: Maintains full flow rate (no restriction).
- Integrated Union Fittings: Allows tool-free disassembly for easy servicing.
- EPDM Seals: Resistant to chlorine, ozone, and temperature swings (-20°F to 140°F).
- Made in the USA: Haywood is a trusted brand in pool equipment since 1969.
❌ Common Alternatives & Their Drawbacks:
| Valve Type | Material | Flow Restriction? | Lifespan (Avg.) | Winterization Friendly? |
|---|---|---|---|---|
| Standard Gate Valve | PVC/Metal | Yes (partial closure) | 3–5 years | No (traps water) |
| Generic Ball Valve | Low-grade PVC | Sometimes | 2–4 years | Rarely |
| Haywood SP723 | UV-stabilized PVC | No | 8–12+ years | Yes |
Source: Industry data from PHTA & consumer durability tests (2024)
How to Install the Haywood SP723 2-Way Ball Valve (Step-by-Step)
Installing the SP723 correctly ensures leak-free operation and maximum longevity. Follow these steps carefully:
- Turn Off Power & Water Supply
Shut off the pool pump at the circuit breaker and close any upstream valves. - Drain Section of Pipe
Use a shop vac or open drain plugs to remove water from the section where you’ll cut. - Cut Existing Pipe Cleanly
Use a PVC pipe cutter to make straight, burr-free cuts. Measure twice—leave ~1.5 inches of straight pipe on both sides. - Dry-Fit the Valve
Slide the SP723 into place with unions hand-tightened. Ensure the handle points in the direction of flow when open (usually toward the filter). - Apply Primer & Cement
Use purple PVC primer followed by medium-body PVC cement. Work quickly—cement sets in 15–30 seconds. - Hold for 30 Seconds, Cure for 2 Hours
Do not turn on the system until fully cured (per ASTM D2855 standards).
⚠️ Pro Tip: Always install the valve with the handle accessible—not buried behind equipment. You’ll thank yourself during winterization!
Common Problems & Fixes
Even reliable parts like the SP723 can face issues if misused. Here are real-world scenarios and solutions:
- Leaking at Union Joints
→ Cause: O-rings dried out or improperly seated.
→ Fix: Shut off system, disassemble, lubricate O-rings with silicone-based grease, and reassemble. - Stiff or Stuck Handle
→ Cause: Debris in ball cavity or sun-damaged actuator.
→ Fix: Soak in vinegar solution (1:1 water/vinegar) for 1 hour, then cycle open/close 10x. - Reduced Flow Rate
→ Check: Is the valve fully open? Some users leave it partially closed, thinking it “saves energy”—this actually increases pump strain.
According to a 2025 study by Pool Tech Journal, 68% of premature pump failures were linked to improper valve positioning or undersized plumbing.
Maintenance Tips to Extend Valve Life
Preventative care keeps your SP723 working like new:
- Monthly: Cycle the valve open and closed to prevent seal adhesion.
- Seasonally: Inspect O-rings for cracks before winterizing.
- Annually: Replace seals if used in saltwater pools (chlorine/salt accelerates wear).
Store spare O-rings (Haywood part # SPX0710Z2) in a cool, dark drawer—they cost under $5 but save $200+ in service calls.
FAQ Section
Q1: Is the Haywood SP723 compatible with saltwater pools?
A: Yes—but inspect seals annually. Saltwater is more corrosive than chlorine-only systems. Use only genuine Haywood EPDM seals (not generic rubber).
Q2: Can I glue the SP723 directly without unions?
A: Technically yes, but not recommended. Unions allow future removal without cutting pipes—critical for repairs or upgrades.
Q3: What’s the max PSI rating for the SP723?
A: 50 PSI at 73°F (23°C). Never exceed this—most residential pool systems operate at 15–30 PSI.
Q4: How do I know if my valve is open or closed?
A: The handle aligns with the pipe when open and sits perpendicular when closed. Mark it with red tape if unsure!
Q5: Can I use this valve for spa jets or solar heating lines?
A: Only if the line is 2-inch PVC and operates within pressure/temperature limits. For smaller lines (1.5”), use the SP710 instead.
Q6: Where can I buy genuine Haywood SP723 valves?
A: Authorized dealers include InyoPools, Leslie’s, and Amazon (sold by Haywood or certified resellers). Avoid third-party sellers with prices 30% below market—counterfeits exist.
Conclusion
The Haywood Filter And Pump Plumbing SP723 2 Way Ball Valve isn’t just another plumbing part—it’s a smart investment in your pool’s efficiency, safety, and longevity. With its robust design, ease of maintenance, and proven reliability, it solves common flow-control headaches before they become costly disasters.
Whether you’re replacing a worn valve or upgrading your system, choosing the SP723 means fewer leaks, lower energy bills, and peace of mind.
Found this guide helpful? Share it with a fellow pool owner on Facebook or Pinterest! A quick share could save someone hundreds in unnecessary repairs. 🏊♂️💧
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