@manxie49 have a similar thing. I don’t really understand why the plumber indulges in the bullshit he does when he has to come back to fix it. I’m used to checking his work before we pay him but getting up in the loft is a pain in the arse.
He fixed the leak in the roof (he caused) but the shower room is steaming up a lot more and the ceilings starting to mould so I get up to look and the tube isn’t on the vent, it’s just resting next to it.
according to the plumber this is because the tubing “a bit old” I said “oh it’s not cos you can’t fit it back on there due to the bit of wood you’ve hammered across there then?”
Ive lost count of how many times I’ve seen his sheepish face, he quite often tails of mid sentence now as soon as my eyebrow raises. I suppose they mainly get away with it so don’t care.