well got realy lucky there was a peace of paper in the box that said phone this number if anyproblems so i did there sending me an impellar and ai finaly got a hold of the petstore that i got it from they swiped an impellar out of another xp4 and gave it to me now i will have an extra impellar worked out for the best
Just a note about XP filters. Don't put the white polishing filter thing in the top basket. It tends to get sucked on to the impeller and it cuts off the flow dramatically. At least that is what we found with our XP3s. We eventually just got rid of the white filter piece. They are great filters otherwise.
i've been using my xp1 for years, thing has never broke down and the impeller is still doing awesome. Due to only have one basket, i keep my polisher for the last stage. I dont think xp1's have issues with the polishing pads getting sucked in.
But with an xp3, probably best to place the polisher before the bio media anyways, it'll definately need less maintnence