Waterway 640-2310V 8" Anti-Vortex Main Drain Cover & Frame Kit (White)
The Waterway 640-2310V is an 8" anti-vortex suction outlet (main drain) cover and frame kit for pool applications.
It’s designed to provide a safer, anti-vortex flow pattern while maintaining strong circulation through the suction outlet.
This kit is commonly used as a replacement when an existing drain cover is cracked, faded, missing, or due for a code-driven update.
Key Details
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Manufacturer: Waterway
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Part Number: 640-2310V
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Color: White
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Type: Anti-vortex main drain / suction outlet cover with frame
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Includes: Cover + frame (collar) + mounting screws (as supplied)
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Application: Pool suction outlet / main drain (floor or wall, model-dependent)
Common Specifications
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Total Open Area: 11.83 sq in (approx.)
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Frame Size: 9" round (approx.)
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Floor Flow Rating: 100 GPM (typical listing)
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Wall Flow Rating: 64 GPM (typical listing)
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Flow @ 1.5 ft/sec: 55 GPM (typical listing)
Fitment Notes
- Match by part number, cover/frame diameter, and screw pattern before ordering.
- If your pool has dual drains (two suction outlets tied together), confirm system flow requirements and cover ratings for your specific configuration.
- Do not substitute drain covers across brands/models unless the cover is explicitly approved for your drain body.
What This Kit Does
- Provides a secure, properly seated cover to help reduce vortex formation at the suction outlet.
- Helps keep debris out of the drain opening while allowing consistent water flow.
- Restores a tight, stable fit when the original cover or frame is damaged or no longer holds screws securely.
When to Replace
- Cover is cracked, warped, brittle, or no longer sits flat
- Frame/collar is damaged or stripped where the screws tighten
- Cover is loose, rattling, or missing hardware
- Renovation/service interval requires replacement of suction outlet covers
Installation Notes
- Turn the pump off before servicing any suction outlet cover.
- Clean the seating surface so the cover sits flush with no debris trapped underneath.
- Use the provided screws (or the correct specified fasteners) and tighten evenly—do not overtighten.
- After installation, confirm the cover is secure and cannot be rotated or rocked by hand.
Maintenance Tip
Inspect suction outlet covers at least once per season for cracks, UV brittleness, or loosening screws. Replace immediately if damaged
or if the cover no longer sits flat—small defects can worsen quickly and affect safety and performance.
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