Neither. There is some kind of seam on the side where they seem to spring a leak. Make sense? My mechanic says it's just crappy workmanship. I'm going to have to try the Dura Pro I guess. I've been getting them at Car Quest but this is strike 3. I just can't help thinking something else is causing this though. I mean 3 in a row?! What could make a water pump break like that?
