You mention mixing the dev last week. So when you used the dev for the poor print how old was it? Does the mixed dev stand in open trays until you use it again? What developer is it? Some devs can last a few days in open trays but most will last only a day or so. Unless the prints were made from a developer that was mixed that day then it is suspect.
I'd try and read a book on printing as soon as possible. Yes it means postponing any more printing until you do but it will put you in a better position to understand what it is all about. If the university has a darkroom then I'd have thought it has at least some books on printing. At the very least do what Saganich has said and tell us your findings.
It is one step at a time. If the dichroic( colour head) is missing then is there anyone there who can say how old the MG filters are and do you know if there is any funds for the replacement of the filters. Someone must have responsibility for the subject of photography in the university and there has to be someone who can unlock funds for the darkroom surely?
pentaxuser
As i said, it was a brand new bottle i opened as the old was almost empty and of unknown age. I believe it has an unopened shelf life of 2 years, and the last chemical order was last year, so pretty safe to say it was a'ok. The developer was also exposed to the air in the trays for no more than a couple of hours, i have only spent 2 court evenings there, much of which was doing other things.
As for how i stored it, yes of course i put it in bottles when i was done and didn't just leave it in the trays! I used the ones that collapse to get the air out, and yes i also gave them a good scrub out, seeing as i had no idea how long the last lot of chemicals had been in there thought it best. And yes, i also used the one labeled as B&W developer for the developer, the same for the stop and fix.
As for books, i'm keeping an eye out for second hand ones
No idea at all how old the filters are, as i understand it most of the kit is donated so could well be very old! I did have a thumb threw them, many were pretty tatty, marks, scratches, creases etc. So probably not as good as they once were....
As for funding to get new stuff, not a chance i'd say! Seeing as the darkroom is so rarely used i doubt even fresh chemicals would be invested in!
But on the plus side, i'm off tomorrow to go get a colour enlarger and whole host of darkroom equipment even including a jobo print processor for the crazy bargain price of £20!!