It has a small leak in it
what is the pipe going into the water pump on my car.It goes into the big inlet on 1993 Ford Taurus
Sounds like your talking about by-pass hose tighten up the hose clamps see if it stops leaking. Note: that motor has timing cover coolant leak issues.
the lower hose has a steel pipe that joins the lower hose to the water pump. the pipe does rot out. it can be replaced. it has one bolt holding it along with the 2 clamps.