Fitted my washer bottle in the inner wing. There was already a hole in the top of the wing in the ideal place to fill it up. Anyone got any suggestions about how to tidy it up and fit a cap? I was thinking about some kind of rubber gromet on both the bottle and the wing top?

Any suggestions? Here is a couple of pics

 

go to a plumbing place fella and ask to look at cold water tank connectors i think they might do the job then make up cap i would get an exra nut then machine a aluminium cover for it hope this helps

 

cheers mate. ill give that a try