4x4van wrote:
The tuba fix is only applicable on certain models. It really depends on the configuration of the hood. Some RV's have a hood that positions the tuba directly behind a joint between the hood and the rest of the bodywork. That allows rainwater to enter through the small gap and go into the intake while driving in heavy rain. Some have solved the issue by adding weather stripping around the hood opening, particularly in the area where the tuba is, without having to cut/turn the tuba.
I will take a good look at the way mine is made, thinking rain water could go down between the windshield bottom and the hood, and straight into the tuba. when i wash again, will see how the water runs down. that could be the problem. might need to put a hood over it.