The reactor is mounted vertically, the inflow is from the side of the reactor, the outflow is from the top of the reactor.
When gas starts accumulating it should come out from the outlet side and not back towards inflow side into the Canister.
The Manual or the website do not state anywhere that a solenoid is required for proper functioning of the reactor.
This should have been mentioned on the product description.
As of now I have taken out the reactor and it is lying useless for me.