It leaked at inlet base first off, bolts were loose so snugged them up and slowed leak but didn't stop, was able to still use it as needed it, can't fiqure out from parts list they sent with it to what parts i need to fix leak on QBK-15, I would guess there is 4 orings, seal or gaskets i would need but no part numbers. Should have did a check over of all bolts before using it so my fault. Pump seems like good quality but if can't fix leak with new parts or parts locally it would be a throw away See full review