Waterway 310-7470 high pressure diffuser assembly for Champion 56 and SVL56 pumpsWaterway Diffuser Assembly, High Pressure, 310-7470 In stock$6399
Waterway 310-7470 high pressure diffuser assembly for Champion 56 and SVL56 pumps
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Waterway Diffuser Assembly, High Pressure, 310-7470

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$6399
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Quick overview

  • High pressure version This is the high pressure diffuser assembly, which is not interchangeable with the standard one.
  • Spans 3/4 hp to 2-1/2 hp One assembly covers that whole horsepower range in these pump families.
  • Champion 56 frame and SVL56 Listed for the Waterway Champion 56 frame pumps and the SVL56 high flow pumps.
  • Supplied as an assembly Comes assembled rather than as loose diffuser components.
  • Waterway part 310-7470 Ordered by the manufacturer number, since diffusers across these pumps look nearly identical.
  • Recovers pump pressure A cracked diffuser lets flow short circuit inside the pump, so the gauge drops while the motor draws the same power.
Full description and specifications ↓

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Product details

Waterway 310-7470 is the high pressure diffuser assembly for Champion 56 frame pumps and SVL56 high flow pumps rated 3/4 hp through 2-1/2 hp.

What it does

The diffuser closes over the impeller and gives the water leaving it a defined path into the volute. That shaping is where a meaningful part of the pump pressure comes from. When the diffuser splits, or its sealing face wears back, flow escapes and circles inside the pump instead of leaving it. The motor sounds unchanged, the current draw barely moves, and the only signal is a filter gauge that will not come up to where it used to sit.

Ordering the right one

Waterway builds more than one version of this diffuser and they are close enough in appearance to confuse. Go by the part number, 310-7470, and by the pump family on the label. It is supplied as a complete assembly.

From Pool School

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Specifications
Brand Waterway
Manufacturer part number 310-7470
UPC 806105232786
Type Diffuser assembly
Part type Pool pump part
Rating High pressure
Horsepower range 3/4 HP to 2-1/2 HP
Fits Waterway Champion 56 frame pumps, Waterway SVL56 high flow pumps
Shipping weight 0.75 lb
Ships Parcel

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Questions and answers

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

Which pumps does this fit?
Waterway Champion 56 frame pumps and Waterway SVL56 high flow pumps, in the 3/4 hp to 2-1/2 hp range.
Does one diffuser really cover 3/4 hp through 2-1/2 hp?
Yes. Unlike the impeller, which is cut per horsepower, this diffuser assembly is listed across that whole range.
What is a diffuser assembly?
It is the shaped housing that fits over the impeller and directs its discharge into the volute. Supplied here assembled rather than as individual pieces.
What does high pressure mean on this part?
It identifies which version of the diffuser it is. Order by the part number 310-7470 rather than by appearance, because the versions look alike.
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