My bath has started to leak. I have checked the sealant, taps and the waste /overflow all appear to be o k. But the chipboard panel underneath the bath has water leaking from the waste end, as this is the lowest part of the bath. As I said before I don't think it is coming from the waste as the leak is coming from above it. I can't feel any damp around the underside of the bath. When anybody uses the shower shower curtains cover the top of the bath.