Waterway 640-2317V (672-2317V) 8" Anti-Vortex Main Drain Cover & Frame Kit – Gray
The Waterway 640-2317V is an 8" anti-vortex main drain (suction outlet) cover and frame kit designed to help reduce
hazardous vortex formation while maintaining strong, consistent flow through the drain. This gray, grated-style cover is commonly used
on residential and commercial pools where a replacement cover/frame is needed due to wear, discoloration, cracking, or code-driven updates.
Key Details
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Manufacturer: Waterway
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Part Number: 640-2317V
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Color: Gray
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Type: Anti-vortex main drain / suction outlet cover with frame
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Style: Grated, anti-vortex design
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Includes: Cover and frame (collar)
Common Specifications
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Cover Size: 7-5/8" (approx.)
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Frame Size: 9" round (approx.)
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Total Open Area: 11.83 sq in (approx.)
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Floor Flow Rating: 100 GPM @ 2.72 ft/sec (typical listing)
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Wall Flow Rating: 64 GPM @ 1.73 ft/sec (typical listing)
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Flow @ 1.5 ft/sec: 55 GPM (typical listing)
What This Part Does
- Provides a secure, code-focused anti-vortex cover to help reduce entrapment risk at suction outlets.
- Helps keep debris out of the drain opening while maintaining water flow.
- Restores a stable, properly seated cover when the original is cracked, warped, faded, or missing hardware.
Fitment Notes
- Designed for 8" class main drain/suction outlet applications that use this cover + frame style.
- Always match by part number, cover/frame diameter, and screw pattern before ordering.
- If your pool uses dual drains or a specific sump, confirm the cover’s rated flow and configuration requirements for your system.
When to Replace
- Cover is cracked, warped, brittle, or no longer sits flat
- Missing/damaged frame (collar) or stripped fastener points
- Loose cover, rattling, or visible damage from cleaning tools or freeze conditions
- Renovation or compliance update where a new anti-vortex cover is required
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 correct fasteners for your drain body and tighten evenly (do not overtighten).
- After installation, confirm the cover is secure and cannot be rotated/rocked by hand.
Related Products (Aqua Pool Supply)
Maintenance Tip
Inspect suction outlet covers at least once per season for cracks, brittleness, or loosening fasteners. Replace immediately if the cover
is damaged or no longer sits flat—small defects can worsen quickly and lead to unsafe conditions or unwanted debris entry.
