My son has recently had a new bathroom fitted. Earlier today he had water running down walls in living room. After removing bath panel it was very evident there was some major leaks from the bath trap. Attached is a picture of the trap. Am I right in saying that this trap has been incorrectly installed. The bottom of the trap is biting into the floor boards. One leak remains which I feel is the cap on the bottom of the trap. I cannot tighten this unless I remove the trap. If I do have to remove the trap should I take some of the floor board away to facilitate getting at it in future. Also a couple of loose earth leads were visible presume this is due to plastic piping being used. Should these leads be connected together to provide electric continuity. Any help would be greatly appreciated