Thanks for all your feedback guys. I'm pretty sure it's not mice or rats. The bathroom's on the first floor and I've seen no droppings or anything.
I reckon I probably grazed it with my angle grinder (like a tit.) I had to nip a bit off a tile that I laid in that area in order to create more wiggle room for where the cold feed tail for the toilet pops out of the floor. (I'd tiled the cold feed in too tight and when I offered up the toilet pan to the flexi waste pipe, the tail was getting in the way.) Was a super awkward manouevre trying to sort it out. Probably happened then.
I would have installed a rigid pipe if I could have, but where the floor joists were in relation to where I wanted the toilet just made it impossible (For me anyway. Perhaps an experienced pro plumber might have figured out a way.)
I don't think I can remove it now without ripping up tiles, cement board, underfloor heating etc.
I'm thinking I might combine a couple of those feedback options and apply a bit of CT1 to the inside of the pipe, let it dry, and then once the toilet is installed, apply araldite to the outside of the pipe...? Any thoughts on that?
I reckon I probably grazed it with my angle grinder (like a tit.) I had to nip a bit off a tile that I laid in that area in order to create more wiggle room for where the cold feed tail for the toilet pops out of the floor. (I'd tiled the cold feed in too tight and when I offered up the toilet pan to the flexi waste pipe, the tail was getting in the way.) Was a super awkward manouevre trying to sort it out. Probably happened then.
I would have installed a rigid pipe if I could have, but where the floor joists were in relation to where I wanted the toilet just made it impossible (For me anyway. Perhaps an experienced pro plumber might have figured out a way.)
I don't think I can remove it now without ripping up tiles, cement board, underfloor heating etc.
I'm thinking I might combine a couple of those feedback options and apply a bit of CT1 to the inside of the pipe, let it dry, and then once the toilet is installed, apply araldite to the outside of the pipe...? Any thoughts on that?