POOL PUMP SEALS COMPARISON
The objective of this test was to validate by using
scientific methods, what we already know from real world
field experience--that all pool pump seals are not the same
HOW WE DID THIS

WE COMPARED FOUR COMMONLY USED POOL PUMP SEALS
(1) US SEAL PS-200
(2) PAC SEAL PS-200
(3) ALADDIN PS-200
(4) PAC SEAL PS-516
The US Seal  PS200, Pac Seal PS200, and Aladdin PS200 are listed as having a  phenolic face
The Pac Seal PS516 is listed as having a carbon face
HOW WE TESTED
We submerged all the seals in a tray of 6% sodium hypochlorite for a period of 160 hours, and examined the
seal face surface for erosion compared to new, in addition we installed the seals on a pool pump, ran the pump,
and checked for seal leaks

THE RESULTS

The Pac Seal & Aladdin PS200 failed first at 72 Hours, The US Seal PS200 lasted until 120 Hours, and the
Pac Seal PS516 was still going at 160 hours

CONCLUSION

It is best to try to get a carbon faced seal if possible, but this may be difficult as most pool stores only stock
the cheaper phenolic faced seals... In any case it is best to replace your pump seal at yearly intervals as
a preventative maintenance, since there are other components such as the elastomer or bellows or spring
that can cause seal failure....
US SEAL PS200 NEW                                                                   US SEAL PS 200             160 HOURS
PAC SEAL PS200 NEW                                 PAC SEAL PS200       160 HOURS
PAC SEAL PS516 NEW                           PAC SEAL 516   160 HRS
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