Like I said , maybe I was just unlucky, but I won't buy the same pump a second time just to find out, that goes for any pump, be it vyair, shurflo or flojet.
It wasn't that mine packed up, it slowed considerably within a 2 year period , so much that my flow controller had to be on full all the time just for it to work adequately, it didn't become fully apparent just how bad it was until I borrowed a pump off of someone to compare it to.