No probs 
Easiest way of checking the vac pipes ive found is to pull one off and blow down it, if you hear a hiss, you have found the leak
I do apologise if this is the usual technique though. Not trying to tell yous how to suck eggs
Easiest way of checking the vac pipes ive found is to pull one off and blow down it, if you hear a hiss, you have found the leak
I do apologise if this is the usual technique though. Not trying to tell yous how to suck eggs