1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of your Waterway 640-3587V Super Straight Hi-Flo Suction Assembly. Please read these instructions thoroughly before proceeding with installation or use. Retain this manual for future reference.
2. Safety Information
WARNING: Failure to follow these safety instructions can result in serious injury or death.
- Always disconnect power to the pump and filtration system before performing any installation or maintenance.
- This suction assembly is designed for use in swimming pools and spas. Do not use for purposes other than its intended application.
- Ensure all connections are secure and watertight to prevent leaks and maintain proper system function.
- This product is designed to be Virginia Graeme Baker (VGB) Act compliant. Ensure proper installation to maintain compliance and prevent suction entrapment hazards.
- Consult a qualified pool professional if you are unsure about any installation or maintenance procedures.
3. Product Overview
The Waterway 640-3587V Super Straight Hi-Flo Suction Assembly is a high-performance component designed for efficient water intake in pool and spa systems. It features a high-flow design and is constructed from durable, NSF-approved materials.
Figure 1: Top view of the Waterway 640-3587V Suction Assembly grate.
Figure 2: Exploded view showing the main components of the suction assembly, including the grate, threaded body, gasket, and locking nut.
4. Setup and Installation
Proper installation is crucial for the safety and performance of the suction assembly. This unit is designed for a 2 1/2-inch threaded connection.
- Preparation: Ensure the pool or spa is drained to a level below the intended installation point. Clean the area around the existing or new suction port on the pool wall.
- Hole Size Verification: The assembly requires a hole size of approximately 3-3/8 inches in diameter for the threaded pipe to pass through. The face size of the grate is 5-1/4 inches.
- Gasket Placement: Place the rubber gasket (if supplied separately, or ensure it's properly seated on the assembly) against the interior wall of the pool/spa, around the suction opening.
- Insert Assembly: From the interior of the pool/spa, insert the threaded portion of the suction assembly through the prepared hole in the pool wall.
- Secure with Nut: From the exterior of the pool/spa, thread the securing nut onto the assembly's threaded pipe. Hand-tighten first, then use a wrench to tighten securely, ensuring the gasket creates a watertight seal. Do not overtighten.
- Connect Plumbing: Connect the appropriate plumbing (e.g., PVC pipe) to the exterior threaded connection of the suction assembly. Use thread sealant tape or paste suitable for pool applications.
- Leak Check: After refilling the pool/spa, carefully inspect all connections for leaks before operating the pump.
5. Operating Instructions
The Waterway 640-3587V Suction Assembly operates passively as part of your pool's filtration system. Once installed, ensure the following for optimal performance:
- Maintain Water Level: Ensure the pool or spa water level is always above the suction assembly to prevent air from entering the pump.
- Clear Obstructions: Regularly check the grate for debris such as leaves, hair, or other foreign objects that could obstruct water flow.
- System Operation: Operate your pool pump according to its manufacturer's instructions to ensure proper water circulation and filtration through the suction assembly.
6. Maintenance
Regular maintenance will extend the life of your suction assembly and ensure continued safe operation.
- Grate Cleaning: Periodically inspect and clean the grate of the suction assembly. Remove any accumulated debris by hand or with a soft brush.
- Visual Inspection: Annually inspect the assembly for cracks, damage, or signs of wear. Pay close attention to the grate and the integrity of the threaded connections.
- Gasket Check: If you notice any leaks around the assembly, check the gasket for deterioration or improper seating. Replace if necessary.
- Winterization: If applicable, follow your pool or spa's winterization procedures, which may include draining water below the suction assembly and ensuring no water remains in the plumbing to prevent freeze damage.
7. Troubleshooting
This section addresses common issues you might encounter with your suction assembly.
- Reduced Suction:
- Check the grate for blockages from debris.
- Ensure the water level is adequate.
- Inspect the pump's skimmer basket and filter for clogs.
- Verify all plumbing connections are tight and not leaking air.
- Leaks Around Assembly:
- Tighten the securing nut on the exterior of the pool wall.
- Inspect the gasket for damage or improper seating. Replace if necessary.
- Check the plumbing connections for proper sealing with thread sealant.
- Visible Damage:
- If the grate or body of the assembly is cracked or broken, it must be replaced immediately to ensure safety and proper function.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | 640-3587V |
| Brand | Waterway Plastics |
| Connection Size | 2 1/2 inches (NPT Threaded) |
| Material | Premium NSF Approved Materials |
| Color | Gray |
| Face Size | 5-1/4 inches |
| Required Hole Size | 3-3/8 inches |
| Rated Flow (VGB Compliant) | 76 GPM |
| Maximum Flow Rate | 180 GPM |
| Item Dimensions (L x W x H) | 3 x 3 x 3 inches |
| Item Weight | 0.7 Pounds (approximately 11.2 ounces) |
| Exterior Finish | Stainless Steel (referring to screw, main body is plastic) |
9. Warranty and Support
For warranty information or technical support regarding your Waterway 640-3587V Super Straight Hi-Flo Suction Assembly, please contact Waterway Plastics directly through their official website or customer service channels. Keep your purchase receipt as proof of purchase.
Waterway Plastics Contact Information:
- Refer to the official Waterway Plastics website for current contact details.
