We renovated our house and have this cupboard which is next to the small toilet. There is a pipe (to help the toilet flush I believe) in the cupboard and I'm wondering if that has anything to do with it.
I've had to throw away shoes several times and this is with using one of those damp remover things that lasts for several weeks.
There's nowhere we could plug in a small low watt heater (and there's not a bulb in the cupboard. Has anyone else had this issue?