Hayward SPX1089K weir assembly for the SP1089 pool skimmerHayward Weir Assembly (SP1089), SPX1089K In stock$3799
Hayward SPX1089K weir assembly for the SP1089 pool skimmer
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Hayward Weir Assembly (SP1089), SPX1089K

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$3799
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Quick overview

  • Genuine Hayward Factory weir assembly SPX1089K.
  • For the SP1089 skimmer Matched to the SP1089 above ground skimmer.
  • Sold as an assembly Comes as the complete weir rather than the door alone.
  • Restores surface skimming The weir is what concentrates suction at the water line so leaves get pulled in.
  • Stops debris blowback A missing weir lets collected debris drift back out of the throat when the pump stops.
  • Plastic construction Molded plastic, as fitted originally.
Full description and specifications ↓

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Product details

The Hayward SPX1089K is the weir assembly for the SP1089 skimmer. It is the hinged floating door that sits in the skimmer throat.

What the weir is for

The weir does two jobs. While the pump runs it narrows the opening so the water accelerates across it, which is what actually drags floating leaves and film into the basket rather than letting them slide past. When the pump stops, the weir swings closed and keeps everything already in the throat from floating back out into the pool.

When to replace it

Weirs crack at the hinge, warp in the sun, or go missing entirely. If the skimmer is running but leaves keep sitting on the surface, or the basket empties itself back into the pool every time the pump cycles off, the weir is the part to look at first.

Specifications
Brand Hayward
Manufacturer part number SPX1089K
UPC 610377037358
Type Skimmer part
Component Weir assembly
Fits Hayward SP1089 skimmer
Material Plastic
Shipping weight 0.2 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Which skimmer is this for?
The Hayward SP1089.
Do I really need a weir?
Yes if you want the skimmer to work properly. The weir raises the water speed across a narrow opening at the surface, which is what pulls floating debris in. Without it the pull spreads out and leaves drift past.
Is this just the flap or the whole weir?
It is the weir assembly.
Why does debris come back out when the pump shuts off?
That is the classic symptom of a missing or broken weir. The weir is supposed to swing shut and hold what has been collected in the basket.
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