yours may not be a non stop flange which means you can push the pipe through the flange into the middle of the cylinder.
if yours is not a non stop the pipe will only just push in the flange and air will rise up the edge of the cylinder straight into your flange.
this gate valve it does work and not been shut or half open ?
i would say the airlock is on the cylinder side of the loop.
depends where the gate valve is as air only rises.
so no good if the gate valve is at the bottom.
if yours is not a non stop the pipe will only just push in the flange and air will rise up the edge of the cylinder straight into your flange.
this gate valve it does work and not been shut or half open ?
i would say the airlock is on the cylinder side of the loop.
depends where the gate valve is as air only rises.
so no good if the gate valve is at the bottom.