I posted a few months ago about a friend's 3 year old doing a massive wee on my new sofa and the stink! I got the great tip of washing the sofa (non removable cushions and covers) with diluted bio washing liquid to finally get rid of the smell. (I can't find the old thread to link to- sorry.)
So a few weeks ago my own dc weed on same sofa again!! Aargh. Repeated the bio washing liquid treatment and then when it was dry did another treatment with stain remover to get rid of the water marks. Which we also had to do last time.
It now looks as good as new but there's a musty horrible smell between the cushions. I think it's been damp for too long. It's dry now but the crack of the sofa has a lingering whiff. Not pee but musty.
Any tips for this?? I am initially thinking of cramming the crack full of bicarb overnight then hoovering out?