skimmer pump replacement

[MillerTime]

After almost 2 years, my skimmer pump stopped on my ATI Powercone IS250 skimmer (Eden controllable AC pump).  I cleaned the impeller and volute, but did not use a vinegar solution and it worked fine....for 2 days.  The ATI replacement is a Jebao DCT 4000 DC pump (waveline knockoff) .  While waiting for the replacement pump, I soaked the original pump with a vinegar solution and it is now working perfectly.  It appears that if the Jebao pump goes belly up, I can replace it for $75 and simply put my volute and gridwheel impeller in and be back in business.....am I missing something?   If I can do this, it's a ripoff of $140 for a volute and impeller.  Oh well, I now have a back up.