Waterway 310-4200 Executive 3 HP pool pump impellerWaterway Executive 3 HP Impeller, 310-4200 In stock$3299
Waterway 310-4200 Executive 3 HP pool pump impeller
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Waterway Executive 3 HP Impeller, 310-4200

Ask a questionMPN 310-4200
$3299
In stock
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Quick overview

  • Genuine Waterway part The factory 310-4200 impeller, not a generic copy.
  • Sized for 3 HP Waterway builds a different impeller for each Executive horsepower, and this is the 3 HP one.
  • Executive series Listed on both the 48 frame and the 56 frame Executive pump breakdowns.
  • Restores lost flow Worn or chipped vanes bleed off head pressure long before the motor sounds unhealthy.
  • Threads onto the motor shaft The impeller screws onto the shaft behind the seal plate, so the shaft seal is worth replacing at the same time.
  • Correct horsepower matters Fitting the wrong impeller changes the flow curve and can overload or underwork the motor.
Full description and specifications ↓

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Product details

The Waterway 310-4200 is the 3 HP impeller for the Executive pump. It is the genuine Waterway part and appears on both the 48 frame and 56 frame Executive breakdowns.

What the impeller does

The impeller is the only moving part in the wet end. It spins with the motor shaft and throws water outward, and its vane profile is what produces the flow and the head pressure the rest of the system depends on. Vanes wear, chip and pack with grit, and the loss is gradual, so a pool that once turned over easily quietly stops keeping up.

Match the horsepower

Waterway uses a different impeller for each Executive horsepower rating. This one is the 3 HP part. Putting a mismatched impeller on a motor changes where the pump sits on its curve, so confirm the rating on the pump before ordering.

While the wet end is open

The impeller threads onto the motor shaft in front of the shaft seal, and the seal has to be disturbed to remove it. Replacing the seal during the same teardown saves opening the pump twice.

From Pool School

How to Prime a Pool PumpFrom the breaker to a full pot, each manufacturer's time limit, and what to check when it won't catch prime. Read Replace the Pool Pump Motor or the Whole Pump?The manufacturers' tests first, what each repair replaces, and the federal motor rule. Read
Specifications
Brand Waterway
Manufacturer part number 310-4200
UPC 806105063342
Type Pump impeller
Horsepower 3 HP
Series Waterway Executive
Fits Waterway Executive 48 frame and 56 frame pumps
Shipping weight 0.3 lb
Ships Parcel

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Questions and answers

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

Which pump does this fit?
The Waterway Executive at 3 HP. It appears on both the Executive 48 frame and Executive 56 frame parts breakdowns.
Can I use it on a different horsepower Executive?
No. Waterway matches the impeller to the horsepower, so a 3 HP impeller belongs on a 3 HP pump. Fitting the wrong one changes the flow curve.
How do I know the impeller is the problem?
Weak flow with a clean basket and clean filter, or a pump that primes but will not build pressure, usually points at a worn, cracked or blocked impeller.
Should I replace anything else while I am in there?
The shaft seal is behind the impeller and has to come off to get the impeller off, so most techs change the seal in the same job.
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