Can anyone help. We have a severe leakage in our bathroom and not sure where it is likely to be coming from. It is either the walk in shower or the CH pipework from the boiler cupboard right next to it. When we step on the tiled floor outside the shower water seeps up. The wall between the shower and the boiler cupboard is wet inside as the plaster board has rotted in place and can stick finger right in. The floor underneath the wall to either side is wet. It is likely to be the shower tray or pipework connected to the CH system? 2 pipes come from the boiler into the wall. THe problem became apparent when we switched on the CH system last week with the cold weather. We have a Worcester Condenscing boiler. Thanks for any advise