Anderson WDP150 Winter Duck Plug check valve winterizing plug for 1.5 in. PVC returnsAnderson Winter Duck Plug Check Valve, Fits 1.5 in. PVC, WDP150 In stock$1499
Anderson WDP150 Winter Duck Plug check valve winterizing plug for 1.5 in. PVC returns
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Anderson Winter Duck Plug Check Valve, Fits 1.5 in. PVC, WDP150

Ask a questionMPN WDP150
$1499
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30 day returns · Easy, with prepaid labels provided

Quick overview

  • Winterize without draining Blow out the returns below the waterline and the valve holds the water out.
  • Duck-bill check valve Air and water pass out of the line, nothing flows back in.
  • Clears every return at once Builds enough back pressure that all lines blow out together, without burping.
  • Double seal Seals at the faceplate or inside the fitting for a watertight barrier.
  • Antifreeze friendly Add pool antifreeze after the blowout and run the blower until a little reaches the pool.
  • Yellow caps included Decorative caps finish the job; they are not needed for the valve to work.
Full description and specifications ↓

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Product details

The Anderson Winter Duck Plug is a winterizing plug for 1.5 in. PVC return lines with a duck-bill check valve built in. It lets you blow the return plumbing out with a blower and then holds the water out of the line, so the pool can be closed without dropping the water level below the returns.

How it works

Thread a plug into every return. The double seal makes a watertight barrier at the faceplate or inside the fitting. Run a blower through the plumbing: the plugs create enough back pressure that all of the returns clear at once, without the burping you get from open lines. After the lines have bubbled for several minutes, shut the blower off and the duck-bill valve closes, keeping pool water from re-entering the pipes.

Optional steps

For added protection, add pool antifreeze to the lines and run the blower again until a small amount of antifreeze enters the pool. Finish with the included yellow caps if you want a tidy look; they are decorative and not required for the plug to work.

Specifications
Brand Anderson
Manufacturer part number WDP150
Fits 1.5 in. PVC return lines
Valve Duck-bill check valve
Seal Double seal, at the faceplate or inside the fitting
Included Yellow decorative caps
Use In ground pool winterizing
Shipping weight 0.02 lb
Ships Parcel

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Customer reviews

Questions and answers

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

How does the Winter Duck Plug work?
Install one in each return, then push air through the plumbing with a blower. The plugs build back pressure so every line clears at the same time. When you shut the blower off, the duck-bill valve closes and keeps water from flowing back into the pipe.
Do I have to lower the pool water to use it?
No. The valve holds the water out of the line after the blowout, so the returns can stay below the waterline.
Should I still add antifreeze?
It is optional. If you want the extra protection, add pool antifreeze to the lines after the blowout and run the blower again until a small amount comes out into the pool.
Are the yellow caps required?
No. They are decorative and give a finished look; the valve seals the line on its own.
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