PENTAIR WHISPERFLO Leaking From Shaft Seal
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
|
96%
CONF
|
Shaft Seal (Heavy Duty/Viton)
The mechanical shaft seal prevents water from migrating along the motor shaft into the motor housing. It fails when the carbon and ceramic faces become pitted or cracked due to heat (dry-running) or chemical imbalance, allowing pressurized water to bypass the rotating assembly. Replacing this specific part restores the watertight barrier between the wet-end hydraulics and the electric motor.
SKU: 071734S
|
|
|
3%
CONF
|
Seal Plate Gasket
This large O-ring seals the junction between the seal plate and the pump volute. High-pressure cycles and chemical exposure can cause the elastomer to flatten (compression set) or become brittle, resulting in seepage that mimics a shaft seal leak at the bottom of the pump.
|
|
|
1%
CONF
|
Seal Plate
If the shaft seal has been leaking for an extended period, the plastic of the seal plate can undergo 'chalking' or erosion due to the constant presence of chlorinated water and heat. This prevents a new shaft seal from seating properly, necessitating a full replacement of the plate to ensure a flat, stable mounting surface.
SKU: 350202
|
DIY Repair Guide
Watch exactly how to replace the Shaft Seal (Heavy Duty/Viton).
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.