I,m not a plumber but !!!!!

[radders58]

I,m going to attempt to fit a vent pipe to my system.
Do I fit it before or after the pump???
Cheers.

 

[newbie1]

whoa there
is your system open vent to start with???
i suggest caution here or at least some more info on your system and youre intentions

 

[heating-eng]

I,m going to attempt to fit a vent pipe to my system.
Do I fit it before or after the pump???
Cheers.

why do you want a vent pipe ?