Water tank lid,

Anybody have any good ideas how to stop water coming out tank lid ,

as you can see in photo , I have bag under it, thn sill cloth over top try and catch any  spills when driving 

cheers !!

Try a bag for life type plastic bag. I can't see why the water is getting past your bag unless it's got a hole in it? Or the lid isn't secured properly?

Think I have found the problem, it’s the fitting around inside the tank , 

over weekend I will put some sealant around it and see if that does thr trick 

I have a similar leak when the tank is full. Its not much but it is there. It seems to come from where the black ring containing the thread is attached to the plastic tank itself. I haven't taken it apart yet but will be interested to see how you get on buddy. ?  

Yeah same when tank is full,  bit silicone underneath around it, then screw it back down , 

I’ll do this over weekend when am not busy ,