Waterway Impeller 3/4 HP Hi-Flo, 310-3990 In stock$31⁹⁹

Waterway 310-3990 3/4 HP impeller for Hi-Flo pool pumps

Waterway Impeller 3/4 HP Hi-Flo, 310-3990

Name: Waterway Impeller 3/4 HP Hi-Flo, 310-3990
Brand: Waterway
SKU: WWP-101-3390
Price: 31.99 USD
Availability: InStock

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$31⁹⁹

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Quick overview

Genuine Waterway part The factory 310-3990 impeller, not an aftermarket copy.
Sized for 3/4 horsepower Impellers are matched to horsepower, so the rating has to match the motor on your pump.
Built for the Hi-Flo Designed for the Waterway Hi-Flo above ground pump family.
Restores lost flow A worn or clogged impeller shows up as weak returns and a pump that struggles to prime.
Threads onto the motor shaft The impeller comes off the shaft during a normal wet end teardown.
Worth pairing with a seal The shaft seal sits directly behind the impeller, so it is easy to renew at the same time.

Full description and specifications ↓

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Product details

The Waterway 310-3990 is the 3/4 horsepower impeller for the Hi-Flo pump family. It is the genuine Waterway part, the same impeller the pump left the factory with.

What the impeller does

The impeller is the only moving part in the wet end. It spins on the motor shaft and throws water outward, and everything the pump delivers at the returns comes from it. When the vanes wear thin, or fine debris packs into them, the pump keeps running at full speed while moving noticeably less water. Owners usually notice slow returns, a skimmer that will not pull, and a pump that takes longer to prime.

Match the horsepower

Impellers are cut for a specific horsepower. This one is the 3/4 HP version, so check the motor label before ordering rather than going by the size of the pump.

While the wet end is open

Getting to the impeller means opening the pump, which is the natural moment to look at the shaft seal behind it and the wear ring around it. Replacing those in the same teardown saves a second strip down later.