Baxi 105E Automatic Air Vent - open or closed during use

[spyke749]

Hi,

I have a Baxi 105e and the Automatic air vent is leaking a small amount of water, so, thinking of swapping it as it's a cheap item to swap.

I understand that when I fill the system, I leave "open" the air valve on top. But, do I leave it undone all the time? or, nip it back up, and just open it when I feel a need to bleed the system.

Secondly, any suggestions on where to buy the correct Auto Air Vent from? Will the universal bottle vent from Screwfix fit?

Thanks for any advice.

 

[ChrisR]

BUy a new baxi one, and leave it open. If it starts to leak, replace it again.