Just another Moderator
Join Date: Sep 2005
Location: New Westminster, BC
Thanked 314 Times in 301 Posts
Rep Power: 10
The mixing elbow itself could be sufficiently corroded to block the flow at that point, or as Tommays points out the injection nozzle could be the culprit.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)