I picked one of these up used trying to save some money. Immediately noticed there was a small dribble below pump. After researching I decided to order a kit that had the seals and new o rings. After replacement of seals and O rings, I now have a substantial dribble, much worse than before. I am pretty new to all of this...learned a lot the passed couple weeks but this is starting to become quite irritating. Any ideas on something I may have missed or procedure done improperly?

This isnt the exact one, just showing to illustrate where leak is coming from: