Cleaning the EHA
 

Hi,

my EHA valve is leaking and I will fix this within the next days. Are there any do's and don't's? I know that I have to measure the position of the nut.

I would also like to clean the pipes within the EHA. I know that I shouldn't take it apart. I was wondering how a ultrasound cleaner would do. However, a device of this size costs some bucks. Any other ideas?

Cheers
Tom