504. It looks like a crack on the Waterway Executive Pump Wet End.

What you are seeing on the Waterway Executive Pump Wet End is not a crack and does not cause any functional problem. It is just a deep mark on the mold surface that create a raised area on the molded part that looks like a crack. NOTE: To verify, use a magnifying glass so that you can see that the markings are not cracks. You are OK to install the pump that you have received. It will not leak from that location.