hidden cistern

I’ve read several threads on the forum, the FAQs, and the Wiki but not found anything which quite addresses my issue. I’m hoping some generous soul can help. This thing is inside a blocked-off area in my flat. It is part of the apparatus from the water line to the toilet cistern: It connects...

I’m having my bathroom renovated in pvc panels, the company didn’t want to install an access panel and by my request have put one in but they’re saying they can’t hide it. surely there’s a way they can hide the access panel even with it being pvc cladding?! I have no idea but in hind sight...