Thought that so ADE's have ordered a new cap for me and are going to test it.
Ive got fed up topping it up every day after 10 miles I get up fill it up get the horses 4.6 miles away fill it up again on the return journey and it's well below minimum when I get home
so decided to take to garage today pressure tested just got a text it's fine so he's gonna have a look and replace a few hoses for me and the cap and then run it and see what happens so I will keep you posted.
Thanks for all the info guys and tips your stars x