plumbing
I have a horizontal drain pipe running from my kitchen/laundry area, which I had been unclogging with a metal coat hanger.
The end was screw fittings I could remove myself, but the part that the hanger is stuck in seems to be cemented together.
I can pull it out so far, but the hook I fashioned on the end seems to be sticking on one of the joins.
Any suggestions on how I could remove it without taking the pipe off or calling a plumber?
How can I locate an odor...?
Don't underestimate the detection abilities of your nose! Get on your hands and knees, and stick your nose right into every nook and cranny. Closing your eyes will help make your nose seem more sensitive. Smell along edges, cracks, baseboards, pipe cutouts, switch plates, jambs, sills, light fixtures, drains, and anywhere there's a gap or mating of any kind. Pull out the frig, dishwasher, washing machine, dryer, or remove their base plates and check underneath with a flashlight. Check the washer drain hose and drain pipe. Pull out all drawers in case something fell inside the cabinets. Don't forget outside walls too. Check any attic or basement or crawlspace. Cover every inch, and sooner or later you'll zero in on where the smell is definitely strongest. The source can't be far away.
Get a drain cleaning water bladder of appropriate size for your pipe. They should have them in the UK. They are readily available in the US and Canada. Hook it up to a garden hose. Take off your kitchen sink's trap (the U pipe) and feed it as far as you can into the drain pipe. Turn on the water to the garden hose, and it will likely clear out whatever you have in there.
Best Answer
If you just pull on the hanger, it should bend before it breaks or damages the pipe. If that doesn't end up being the case, then you'll need to call a plumber but it seems likely you'll have to do that anyway.