alt Hacker NewsBTW, in Germany you're not allowed to install it yourself. At least that's what I read some time ago. I guess nobody checks, of course, but in case things go bad and you need insurance, probably they can invalidate it due to the fact you did something illegal.
Not saying it makes sense, though.
i installed mine myself and probably illegaly. But its super easy and those people who install it do a shit job sometimes. I watched professionell people flushing those pipes with compressed air....
And the fine is nonexistent so everyone should do it themself.