I have a 1" hose for gravity filling backpack from vans tank. I've used a plastic one for a water butt the last few months but now leaks as I cannot tighten it enough to get a good seal, the back nut slips on the thread once its any more than hand tight.
If anybody has done similar where can I get one from ?
I've spent an hour googling and don't seem to be able to find exactly what I need.