[arenner5]

trying to flush system where is the hose that i place the tee on to connect the hose?

 

[93celicaconv]

You should have an instruction that comes with the flushing tee kit that tells you which hose to put the tee into. It's a heater hose, and I don't remember right off hand if it is the supply to the heater, or the return from. Your instructions will tell you though.