For the past couple of months, we’ve been getting this almost sulphureous odour coming out of our shower.

At first, it went away after we took off the drain cover and removed some big hunks of hair. But it came back again. Then, it went away for a while after we used some Liquid Plumber. But, again, it came back.

We just had the plumber in here to look at it. According to him, there’s nothing wrong with the plumbing. (Although I should have asked him how he’s certain that there’s nothing wrong with the trap itself – which prevents sewer odour from coming up.) So, it can only be the shower itself or the water.

If it’s the shower, it means somewhere around $3,000 to get it replaced. We’d had part of it re-tiled a few years ago, but the caulking (I don’t believe that part of it was done very well – unfortunately, we only know that now) is starting to blacken and, generally, decay. However, it’s still not structurally unsound, as far as we can tell. (We’d originally got it re-tiled because it was leaking into the common room beneath us.)

Which leaves the water. We’ve been using a water purification filter in the shower for about a year now, without any problem. However, I’ve now taken that off. We’ll see if the odour persists or not. (Some preliminary tests indicate that it’s no longer smelling – but I can’t be sure of that until we actually use it.)