Thanks, all. Coincidentally, my return pump failed last week - there was a short. I was walking around wondering where the "burning electric" smell was coming from. Later that night the return pump stopped - my controller started sending me emails! When I unplugged the pump's controller power cable it lit on fire! Needless to say, I removed that pump and trashed it. I put in a small spare Jebao I had which doesn't really supply enough flow to my tank and manifold but a spare is a spare.
Thanks to this contest I just purchased a replacement return pump!
Thank you again R2R!