The Blue Devil B8550 Skimmer Weir Gate is a high-quality replacement gate sized at 8-3/8″ for swimming pool skimmers like the Swimquip U3. It swings freely with the water level to help skim surface debris into the basket while minimizing air draw into the pump system. Constructed of durable plastic, it maintains proper skimmer function, keeps leaves and twigs from bypassing the skimmer basket, and helps protect your filter and pump from excess debris and air intrusion. Designed for easy installation, the B8550 offers a value-oriented alternative to brand-name OEM assemblies.
Highlights
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Exact 8-3/8″ Width Fit: Tailored to match U3-style skimmers (such as 08650-0022) for direct drop-in replacement without modification.
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Debris & Air Protection: Helps prevent leaves, twigs and surface film from entering the pool system and reduces air from entering the pump suction.
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Durable Plastic Construction: Built with strong plastic hinge and body to resist water chemistry and seasonal wear.
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Value Replacement Option: Offers a cost-effective alternative for skimmer maintenance without paying full OEM pricing.
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Easy Field Installation: Simple drop-in swap for the U3 skimmer weir assembly—minimal tools and time required.
Additional Info
If you’re replacing a worn Swimquip U3 weir, this section explains how the Blue Devil B8550 fits the 8-3/8″ opening, how it restores proper skimming, and what to check before buying in store. This weir helps keep surface debris flowing into the basket and reduces air entering the system.
Confirming Fit for Swimquip U3 Skimmers
The B8550 is sized specifically for U3-style skimmers using an 8-3/8″ gate. Measuring the old weir or skimmer throat helps confirm correct compatibility before replacement.
How to check in store that my skimmer takes an 8-3/8 inch Swimquip-style weir
Can I bring my old weir gate to match the B8550 dimensions
Whether the B8550 fits older U3 skimmers that used part 08650-0022
How to measure my skimmer throat to confirm the correct width
Signs the existing weir has warped and needs replacing
Installing the Weir Gate and Ensuring Smooth Swing
Smooth movement is essential for proper skimming. Ensuring the hinge area is clean and correctly seated helps the weir open and close with the water level.
How to install the B8550 weir gate so it swings freely
What to check if the gate sticks or fails to return to position
Can I buy skimmer screws or hinge clips in store if needed
How debris lodged in the hinge reduces skimmer efficiency
Whether lubrication is required for smooth weir movement
Improving Skimmer Performance and System Protection
Replacing a damaged weir helps direct debris into the basket while minimizing air draw, protecting pump priming and filtration flow.
How often DPM customers should replace worn U3 weir gates
Can I buy skimmer baskets or lids in store for a full tune-up
What symptoms indicate air intrusion caused by a missing weir
How a new weir improves debris capture on windy days
When to inspect skimmer throat edges for wear during replacement
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