How To Fix Leaking Pool Pump | Pentair Challenger Motor Shaft Seal Replacement & Housing Gasket Leak

The pool pump shaft seal on our neighborhood pool started leaking tons of water. The pool pump housing is a Pentair Challenger Pump 5hp mated to a large strainer basket designed for 5hp pumps. The pump motor we are using is a Century Centurion Model B1000

The motor shaft diameter is 5/8in

Pentair Challenger Pool Pump seal kit
Leslie's Pool Supply Repair Kit #65005 (Which was only available at Leslie's Commercial store)

Shaft Viton Pump Seal Part PS200V Leslie's Part #40677 (UPC Code: 810379030078 )
Buy from Amazon - https://amzn.to/3ydEVGq

Diffuser O-ring Leslie's Part # 66518 (UPC Code: 810379030375 )(Compare to PAC FAB PENTAIR #355331 or ALADDIN O-421 )
Buy from Amazon - https://amzn.to/382tpD8

Housing Gasket Leslie's Part # 608185 (UPC Code: 810379030467 )(Compare to PAC FAB PENTAIR #355329 or ALADDIN O-506 )
Buy from Amazon - https://amzn.to/3D8kyOu or https://amzn.to/3B1RhDp

Strainer Basket Gasket (AM GSKT TR100C LID 152509 Pentair 152509 8-1/2" O Ring Pump/Filter) Leslie's Part # 44562
Buy from Amazon - https://amzn.to/3japsm4

Other 5hp pump parts -
https://www.poolsupplyunlimited.com/p...

NOTE - A viewer commented that using silicone or PTFE based lubricants can decrease the life of the motor shaft seal (the ceramic face), and that only US SEALUBE should be used on the motor shaft seal area. it is available here - https://amzn.to/3qsasTJ
US SEALUBE pdf for more info - https://www.ussealmfg.com/-/media/j/u...

The pool pump motor ended up needing its bearings replaced also because water had gotten past the multiple seals and into the bearing. The motor is a Century Centurion B1000. It was impossible to find out what size bearings were used. None of the pool companies knew, and I also contacted the manufacture, which led me to their local service center, who spent some time looking for documentation that had the bearing sizes, and they could not find it either. Finally, the bearings seized, the pump motor stopped, and we had to remove and take it apart to determine the bearing dimensions.
The front bearing is an NSK 6304DU (Replaced with a 6304-2RS) designed for a 20mm shaft - https://www.mcmaster.com/catalog/6661...
The rear bearing is an NTN 6203LH (Replaced with a 6203-2RS) designed for a 17mm shaft - https://www.mcmaster.com/catalog/6661...

Pool Pump Seal Replacement for Pentair Challenger Motor Shaft and Housing Seal Gasket Leaking Leak

Pool Pump Seal Replacement for Pentair Challenger Motor Shaft and Housing Seal Gasket | Cedar Park

#pool #poolpump #pump

The products shown here were purchased by me with the intent to use them. I did not receive any free items, and I am not being paid or compensated for this review. The video, description, and comments may contain affiliate links. If you click on a link, I may receive a commission. Money earned helps to support my channel and bring you more informative videos about engineering, crafting, and DIY